Patent Publication Number: US-11037140-B2

Title: Method and system for correlating diverse transaction data

Description:
CROSS-REFERENCES TO RELATED APPLICATIONS 
     This application is a continuation application of U.S. patent application Ser. No. 15/354,891, entitled ‘METHOD AND SYSTEM FOR CORRELATING DIVERSE TRANSACTION DATA” filed Nov. 17, 2016, which is a continuation of U.S. patent application Ser. No. 13/910,970, entitled “METHOD AND SYSTEM FOR CORRELATING DIVERSE TRANSACTION DATA”, filed Jun. 5, 2013, now U.S. Pat. No. 9,524,501, issued on Dec. 20, 2016 which is a non-provisional application and claims the benefit of priority under 35 U.S.C. § 119(e) to U.S. Provisional Patent Application No. 61/656,480, filed Jun. 6, 2012 entitled “METHOD AND SYSTEM FOR MATCHING E-COMMERCE AND PHYSICAL POINT OF SALE TRANSACTION DATA”, which are herein incorporated by reference in their entirety for all purposes. 
    
    
     BACKGROUND 
     Today consumers have different ways to purchase goods or services from a particular merchant. For example, goods and services may be purchased from the merchant remotely over the Internet or may be purchased in person at a store operated by the merchant. The transaction data received through these different payment processes can be different. For example, the merchant may receive tokenized transaction data in an Internet transaction while the same merchant may receive non-tokenized transaction data when a transaction is conducted at the merchant&#39;s store. 
     “Tokenized data” may be data that is derived from real transaction data. Tokenized data obscures the real data such that the real data is not compromised if the tokenized data is fraudulently obtained. While the use of tokenized data obscures the real transaction data and is an effective way to combat fraud, the use of tokenized data presents other problems. For example, because the tokenized data is obscured, it is difficult if not impossible for the merchant to correlate the tokenized data to other transaction data that it may have. As an illustration, a merchant may wish to correlate a transaction that is represented by tokenized data to other transactions that are not represented by tokenized data to perform marketing or fraud analytics. By doing so, the merchant can review, analyze and/or process transaction data regardless of its original form. 
     Embodiments of the present invention solve these problems and other problems individually and collectively. 
     SUMMARY 
     Embodiments of the present invention are directed to methods, systems, and apparatuses for providing universal identifiers across a number of payment channels to allow merchants or other entities to identify consumer activity across a number of different payment methods, systems, and devices. For example, embodiments of the present invention may generate and provide a universal account identifier before, during, or after a payment transaction for transactions initiated using both e-commerce as well as point-of-sale channels. 
     One embodiment of the present invention is directed to a method. The method comprising receiving, by a computer, first transaction data comprising a payment token or second transaction data comprising a primary account identifier, wherein the payment token is derived from the primary account identifier, and providing, by the computer, a universal account identifier after receiving the payment token or the account identifier, wherein the universal account identifier is a substitute for the payment token and the primary account identifier. 
     Another embodiment is directed at a server computer comprising a processor and a computer-readable medium coupled to the processor, the computer-readable medium comprising code executable by the processor for performing a method. The method comprising receiving first transaction data comprising a payment token or second transaction data comprising a primary account identifier, wherein the payment token is derived from the primary account identifier, and providing a universal account identifier after receiving the payment token or the account identifier, wherein the universal account identifier is a substitute for the payment token and the primary account identifier. 
     Another embodiment is directed to a method comprising receiving, by a computer, e-commerce transaction data including a payment token from a merchant computer, determining, by the computer, a primary account identifier associated with the payment token and a universal account identifier associated with the primary account identifier, and sending, by the computer, the universal account identifier to the merchant computer. The merchant may further store the universal account identifier in a database comprising e-commerce transaction data and retail transaction data. 
     Another embodiment is directed to a server computer comprising a processor and a computer-readable medium coupled to the processor, the computer-readable medium comprising code executable by the processor for performing a method. The method comprising receiving e-commerce transaction data including a payment token from a merchant computer, determining a primary account identifier associated with the payment token and a universal account identifier associated with the primary account identifier, and sending the universal account identifier to the merchant computer. The merchant computer may store the universal account identifier in a database comprising e-commerce transaction data and retail transaction data. 
     These and other embodiments of the invention are described in detail below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  illustrates an exemplary block diagram of an exemplary payment transaction system with two separate payment channels including retail (i.e., brick and mortar) as well as online (i.e., e-commerce) transaction processing systems, according to an exemplary embodiment of the present invention. 
         FIG. 2  illustrates an exemplary block diagram of a universal account identifier generation system that may be incorporated into a transaction flow during transaction processing, according to one embodiment of the present invention. 
         FIG. 3  illustrates an exemplary block diagram of a universal account identifier generation system that may be used to match e-commerce and retail transactions after transaction processing, according to another embodiment of the present invention. 
         FIG. 4  illustrates an exemplary flow diagram of an exemplary method of generating and providing a universal account identifier to a requester by a universal account identifier system, according to one embodiment of the present invention. 
         FIG. 5  illustrates an exemplary flow diagram of an exemplary method of requesting and receiving a universal account identifier during the processing of an e-commerce transaction by a merchant processor, according to one embodiment of the present invention. 
         FIG. 6  illustrates a block diagram of a computer apparatus. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments of the present invention are directed to methods, systems, and apparatuses for generating and providing universal identifiers to allow various entities (e.g., merchants, acquirers, issuers, payment processors, etc.) to identify consumer activity, regardless of the particular payment methods, systems, and/or devices used by the consumer. In order to accomplish this, embodiments of the invention may generate and provide a universal account identifier before, during, or after a payment transaction conducted by the consumer. This universal account identifier may be used to track and correlate transactions, regardless of the way in which a transaction is conducted. For example, the methods and systems can be used to match e-commerce and physical point-of-sale (POS) transaction data that is associated with a single underlying account so that a merchant can perform data analytics, fraud analytics, and/or other processing on that account. 
     Most merchants today accept payments for transactions through their Websites as well as at their physical point-of-sale (POS) terminals. However, the two types of transactions may not be processed in the same manner and the transaction data stored by the merchant may not be the same for each type of transaction. For example, retail transactions may be processed using a primary account identifier (e.g., credit card number) that may be associated with an account issued by an account issuer or bank. The primary account identifier may be stored on a portable consumer device (e.g., a credit card, debit card, etc.) and the portable consumer device may be provided to a merchant during a retail transaction. To initiate a payment transaction, the consumer may take his portable consumer device and use it to tap, swipe, or otherwise interact with a merchant access device (e.g., a point-of-sale terminal) operated by the merchant. A transaction authorization request message may be generated by the access device and it may be sent to an issuer for approval. The issuer may then respond to the merchant access device with an authorization response message. 
     In some e-commerce transactions, a payment token may be used instead of a real account number. This can be done to ensure that the account data is secure and cannot be obtained by unauthorized persons. For example, a payment token may be stored at a merchant Website along with other consumer data (e.g., shipping address, billing address, etc.) and a consumer may use the payment token to pay for continuing purchases on the merchant Website. As compared to in-person or card present types of transactions, payment tokens are often stored by e-commerce merchants, because multiple purchases can be made by consumers at the websites operated by the merchants. 
     As illustrated above, the tokenized or masked account data may not match the primary account identifier, even if the same portable consumer device and/or consumer account is used for each transaction. Accordingly, a merchant may not be able to match transactions initiated over the separate payment channels because the payment token and the primary account identifier do not match and thus the merchant may not know that the consumer initiated both transactions. This mismatch prevents merchants from matching customers across multiple sales channels or platforms. As such, merchants are not provided with a full picture of a customer&#39;s purchasing history, preferences, and whether the customer even uses both purchasing platforms. 
     For example, a consumer may walk into a merchant and purchase a shirt at their retail location. The consumer may use a credit card comprising a primary account identifier (e.g., “1111222233334444”) to purchase the shirt and the merchant may store the primary account identifier along with other transaction information including the type of item purchased, the transaction amount, how many items, the time and date, the merchant location of the transaction, etc. in a merchant database. Furthermore, the consumer (also referred to as a user) may later log onto the merchant&#39;s Website and purchase a pair of pants. The consumer may use the same credit card or other payment device associated with the primary account identifier as was used at the merchant&#39;s retail store. However, due to security concerns and the manner in which some e-commerce transactions are processed, the merchant may not receive the primary account identifier during an online transaction. Instead, the merchant may receive a payment token (e.g., “4444333322221111”) that may be derived from the primary account identifier and is provided by the merchant processor that processes payment transactions on behalf of the merchant. Accordingly, the merchant can only store the payment token along with the transaction information in the merchant database. Therefore, the merchant may have two separate analytics database entries corresponding to the two transactions that are independent and unrelated to each other. As such, even though the consumer bought two items from the merchant using the same credit card, the merchant cannot determine that the shirt and pants were purchased by the same consumer with the same credit card and cannot merge the two transaction database entries into a single consumer entry in order to better understand consumer transaction history. The lack of understanding may further disrupt fraud analysis, system security, and other aspects of the system. 
     However, in embodiments of the invention, a universal account identifier generator computer (which may be operated by one or more computers) may provide a universal account identifier that may be used to represent the consumer account for various transaction types or channels (e.g., e-commerce, physical point of sale, mobile, etc.). For instance, using the example above, a merchant that sells clothes may submit transaction data generated from retail and online transactions to a universal account identifier generator system that may convert a real primary account identifier (e.g., 1111222233334444) that is used for a retail transaction and/or a payment token (e.g., 4444333322221111) that is used in an e-commerce transaction into the same universal account identifier (e.g., 1A3B2C4D). The universal account identifier generator computer may generate a universal account identifier by converting the real primary account identifier into a universal account identifier that is repeatable and unique to a particular consumer for all transaction completed with the merchant. Furthermore, for e-commerce transaction data, the universal account identifier generation system may convert the tokenized payment token associated with a payment processing service or merchant processor into the corresponding primary account identifier and then convert the primary account identifier into the same universal account identifier that was generated in response to the retail information. Accordingly, a computer can process and/or analyze transaction data associated with the universal account identifier, so that, for example, e-commerce and physical point of sale transaction data associated with a single account and a single consumer can be analyzed together. 
     Embodiments of the present invention provide a number of advantages. For example, the universal account identifier generator computer providing a single universal identifier for transactions processed across e-commerce, retail, and any other payment channels provides a merchant with a more complete record of consumer behavior across multiple payment channels. Better fraud detection and marketing can be performed with complete account transaction records. For example, if an account is associated with clearly identifiable fraudulent behavior in e-commerce transactions, the corresponding use of the account at a physical point of sale could be identified as fraudulent, even though the fraudulent use of the account solely at the physical point of sale would not be otherwise identifiable. As an illustration, a payment token that is used at a merchant Website may be associated with multiple chargebacks indicating fraudulent behavior. However, the use of the corresponding real account number at a physical point of sale may not result in an excessive number of chargebacks. By using a universal account identifier to tie the transactions conducted at physical point of sales and e-commerce transactions together, it is possible to identify the real account identifier as being associated with fraudulent activity. If the real account identifier is identified as being associated with fraudulent activity, it can be put on a blacklist to prevent future fraud. Alternatively or additionally, the e-commerce and physical point of sale data can be aggregated as being associated with a fraudulent account and this data can be used to update fraud risk models to prevent the authorization of other similar types of transactions conducted with similar behavioral patterns. 
     In another example, by tying physical point of sale and e-commerce transactions associated with the same underlying account together, it is possible to perform better marketing towards the holder of the underlying account. For example, an underlying account may be used to conduct many transactions for shoes at a merchant&#39;s physical point of sale, but may not be used to purchase shoes on the merchant&#39;s Website. The use of the universal account identifier allows the merchant to discover that the consumer associated with the underlying account likes to purchase shoes, and relevant marketing materials may be presented to the consumer. For example, coupons providing discounts for shoe purchases on the merchant&#39;s Website may be mailed or e-mailed to the consumer. 
     Prior to discussing the specific embodiments of the invention, a further description of some terms can be provided for a better understanding of embodiments of the invention. 
     According to some embodiments, “transaction data” can include any data associated with one or more transactions. In some embodiments, the transaction data may merely include an account identifier or payment token. Alternatively, in other embodiments, the transaction data may include any information generated, stored, or associated with a merchant, consumer, account, or any other related information to a transaction. For example, transaction data may include data in an authorization request message that is generated in response to a payment transaction being initiated by a consumer with a merchant. Alternatively, transaction data may include information associated with one or more transactions that have been previously processed and the transaction information has been stored on a merchant database or other merchant computer. The transaction data may include an account identifier associated with the payment instrument used to initiate the transaction, consumer personal information, products or services purchased, or any other information that may be relevant or suitable for transaction processing. Additionally, the transaction information may include a payment token or other tokenized or masked account identifier substitute that may be used to complete a transaction and protect the underlying account information of the consumer. 
     Additionally, in some embodiments, there may be different types of transaction data including e-commerce transaction data, retail transaction data, mobile transaction data, etc. For example, each type of transaction data may be dependent on the type of transaction or the channel in which the transaction is initiated (e.g., an e-commerce transaction initiated over the internet may generate e-commerce transaction data). Each type of transaction data may comprise different types of data or may comprise the same type of data. For example, a retail transaction may generate retail transaction data when a consumer swipes a credit card at a point-of-sale terminal of a merchant. The retail transaction data may comprise Track 1 and/or Track 2 payment data included on the magnetic stripe or chip of the consumer&#39;s credit card (or other payment device). Accordingly, the retail transaction data may comprise the Track 1 and/or Track 2 data as well as additional data associated with the consumer, merchant, account associated with the payment device, or any other information. 
     Furthermore, in some embodiments, multiple types and instances of transaction data may be received and processed. For example, “first transaction data” and “second transaction data” may include separate transaction data that is generated by transactions that are separated by time, merchant, merchant location, consumer location, transaction type, or any other variable that would cause transaction data associated with a single consumer account to be separated into two different messages or pieces of data. For example, first transaction data may be related to a first transaction originated at a first time and second transaction data may relate to a second transaction initiated at a second time. In some embodiments, the first transaction data and the second transaction data may be received by components within the transaction system at the same time (e.g., in a single communication message) or may be received at two different times (e.g., in separate messages). Accordingly, transaction data may comprise any number of transaction data (e.g., first transaction data, second transaction data, third transaction data, etc.) associated with any number of transactions. First transaction data and second transaction data may be related to transactions that are completed by the same consumer or another person using the consumer&#39;s same underlying primary account identifier. For example, a consumer may initiate a first transaction that generates first transaction data and then a friend or agent of the consumer may initiate a second transaction on behalf of the consumer using their credit card or other payment device that generates second transaction data. 
     A “payment token” may include any series or combination of characters, numerals, or other identifiers that represent an account being used in a payment transaction and may be substituted for a primary account identifier during a transaction. For example, a payment token may include a masked, tokenized, or substitute account identifier that may be used instead of the consumer&#39;s primary account identifier, in order to protect the security of the consumer&#39;s account information. For instance, during a payment transaction that is initiated over the internet, a merchant processor may be utilized to process the Internet or e-commerce transactions. In order to protect the consumer&#39;s primary account identifier, the merchant processor may interface with the merchant&#39;s online store and may embed a hosted order page (HOP) or silent order page (SOP) in order to process the transactions on the merchant&#39;s behalf. In order to protect the consumer&#39;s account identifier, the HOP/SOP page may tokenize or mask the account information entered by a consumer during a transaction so that if the electronic communication over the internet is intercepted by a malicious third party, no sensitive account information may be stolen that could be used to initiate unauthorized transactions. The tokenized account information or payment token may be useless without the malicious third party knowing the tokenization or masking algorithm. Accordingly, the payment token may be derived from the primary account identifier. 
     A “primary account identifier” may include any series or combination of digits, alphanumeric characters, numbers, or graphics that may identify or be associated with a consumer&#39;s issued account at an account issuer or bank. Typically, a primary account identifier may include both an account identifier portion as well as a bank or issuer identifier (BIN) so that a payment processing network may determine which issuer is associated with the primary account identifier. The primary account identifier may be a real or tangible account identifier and thus may be tied to an actual issuer account and may be used by the issuer to identify the account and may not merely include another substitute account identifier, Typically, in credit or debit card transactions, a primary account identifier may be stored in Track 1 data and may be transferred to a merchant&#39;s access device or point-of-sale (POS) device when a card or other consumer device is swiped at the merchant device. As explained previously, in some embodiments, the primary account identifier may be tokenized, masked, or otherwise substituted during a transaction to generate a payment token that may be registered and substituted during a payment transaction. 
     A “universal account identifier” may include any series or combination of alphanumeric characters, digits, numbers, or graphics that may identify transactions initiated by a particular consumer&#39;s account across any number of payment channels. For example, a universal account identifier may include a unique and reproducible account identifier for any transaction completed by a consumer across e-commerce, retail, and mobile transaction channels. A universal account identifier may be generated by a universal account identifier generation system and may be delivered either before, during, or after a transaction. The universal account identifier may be a substitute for a payment token and/or a primary account identifier associated with the transaction. 
     The universal account identifier may be generated in any suitable manner. For example, the universal account identifier may be generated by applying a conversion algorithm to a primary account identifier. The conversion algorithm may generate a universal account identifier that may be cryptographically secure (e.g., a hashable one-way security mechanism) and it may be referentially transparent, meaning that every time a request for a universal account identifier is received including a particular primary account identifier or payment token, the same universal account identifier may be generated and returned to a requestor, which may include any entity in the transaction system (e.g., merchant, merchant processor, acquirer, payment processing network, etc.). Furthermore, universal account identifiers may be considered different than pure tokenization because the universal account identifier is repeatedly generated for any number of transactions associated with the consumer device. In typical tokenization systems, a new one-time use token may be generated for each transaction and although some systems may re-use tokens, the re-used tokens will most likely not be associated with the same consumer again. Furthermore, the conversion algorithm may be specialized or customized for each merchant such that the different conversion algorithms may be not be shared between merchants and the universal account identifiers are unique between merchants. Accordingly, merchants may be able to configure or otherwise impact the format of the universal account identifiers used to match transactions of their consumers across multiple payment transactions. Such formatting options may include the type of characters (e.g., alphanumeric, binary, etc.), length, etc. of the universal account identifiers. 
     A “payment transaction” may include any interaction between a buyer and a seller for a good or service. For example, a payment transaction may include a consumer initiating a transaction at a merchant website through a user computer or may include a consumer completing a purchase at a merchant&#39;s physical brick and mortar storefront. 
     Operations that occur during a payment transaction may include any operations, steps, methods, or other activity that may occur after the initiation of a payment transaction and before a merchant receives confirmation or authorization to complete a transaction with a consumer. For example, during typical transaction processing, a consumer may initiate a transaction by swiping their payment device at a merchant access device which may generate an authorization request message that may be transferred through a payment transaction processing system in order for a payment to be processed, as will be described in further detail below. Any actions that occur after a transaction has been initiated and an authorization request message has been generated but before a merchant receives an authorization response message from an issuer associated with the consumer, may be considered as being during a payment transaction. 
     Operations that occur after a payment transaction may include any operations, steps, methods, or other activity that may occur after the completion of a payment transaction and thus after the merchant receives authorization of a payment transaction. As explained above, in some embodiments, an issuer associated with a consumer may generate and transfer an authorization response message through a payment transaction system. The authorization response message may include an indication as to whether a transaction is authorized. 
     A “retail payment transaction” may include a payment transaction that is initiated at a merchant or through a merchant access device (e.g., point-of-sale device). For example, a retail payment transaction may include transactions that are initiated by a consumer using a portable consumer device (e.g., credit or debit card) while shopping at a merchant&#39;s brick and mortar storefront or other physical location. 
     An “e-commerce payment transaction” may include a payment transaction that is initiated by a consumer using a user computer, mobile communication device, or other electronic device over the internet. For example, a consumer may visit a merchant&#39;s e-commerce or internet website, may select a number of items or services they wish to purchase, and may check out or otherwise initiate a payment transaction over the internet in order to purchase the items or service. 
     A “mobile payment transaction” may include a payment transaction that is initiated by a consumer using a mobile device. For example, a consumer may initiate a transaction using a mobile communication device that is configured to complete transactions using accounts stored on digital wallets and communicates with a merchant&#39;s access device via near-filed communication (NFC) or other communication standard. 
     A “de-tokenization request message” may include any message that requests de-tokenization of a payment token from a processor associated with the payment token. For example, a de-tokenization request message may be sent by a universal account identifier system to de-tokenize a payment token when the universal account identifier system does not have access to the tokenization algorithm or tokenization scheme of the processor or otherwise does not recognize the consumer account, payment token, consumer associated with the payment token, or any other relevant information in the payment transaction data in order to determine a primary account identifier associated with a consumer. In such cases, the universal account identifier system may request the payment token be de-tokenized such that the underlying primary account identifier may be determined and a universal account identifier that is associated with the payment token as well as any transactions initiated using the primary account identifier may be matched. 
     A “de-tokenization response message” may include any message that is sent in response to the de-tokenization request message. For example, the de-tokenization response message may be sent from a merchant processor associated with a payment token and may include the primary account identifier associated with the payment token that was included in the de-tokenization request message. Additionally, if a merchant processor does not recognize or cannot otherwise determine the consumer account or primary account identifier associated with the payment token, the de-tokenization response message may include an error message, unknown payment token message, or other information to inform a system that the payment token cannot be de-tokenized. 
     A “universal account identifier request message” may include any message sent to a universal account identifier generator computer from a requestor that includes a request for a universal account identifier. Any entity in the transaction ecosystem may request a universal account identifier request message from a universal account identifier generator computer. For example, the universal account identifier request message may be sent by a merchant or a merchant processor. The universal account identifier request message may include a primary account identifier or a payment token associated with a transaction initiated by a consumer across any number of payment channels. Furthermore, the universal account identifier request message may also include any other transaction information including details related to the underlying transaction associated with the payment token or primary account identifier. Furthermore, the universal account identifier generator computer may also be capable of providing value add transaction services including providing offers, promotions, fraud detection, etc. and any information that may be relevant to such operations may be included in the universal account identifier request message. 
     Additionally, in some embodiments, the universal account identifier request message may include personal information including consumer name, telephone number, or other identifier that may allow a universal account identifier generator computer to determine the consumer associated with a request and return a universal account identifier that may be used to identify a consumer or a consumer account. For example, it may be possible for the system to receive any other unique information for a consumer in a universal account identifier request message and generate a universal account identifier by either using the underlying unique information or by determining a stored universal account identifier associated with the unique information. For instance, in some embodiments, it may be possible to receive a name, social security number, or a combination thereof, and a conversion algorithm may be applied to the unique information in order to determine a universal account identifier associated with the consumer. Additionally, such techniques could be applied to physical track data on a consumer device or any other transaction data that may be associated with an underlying transaction that uniquely identifies the user or consumer. 
     A “universal account identifier response message” may include any message from a universal account identifier generator computer that is sent in response to a universal account identifier. For example, a universal account identifier response message may include a universal account identifier that is generated or determined in response to a universal account identifier request message that included a particular primary account identifier, primary account number (PAN), payment token, or other unique consumer information that allows a universal account identifier generation computer to determine and/or generate a universal account identifier associated with a universal account identifier request message. Universal account identifier request messages and universal account identifier response messages may be identified by the requester of the universal account identifier request message. For example, if a merchant is requesting a universal account identifier request message, the universal account identifier request message may be referred to as a merchant universal account identifier request message. Similarly, the universal account identifier response message that is sent in response to the merchant universal account identifier request message may be referred to as a merchant universal account identifier response message. Thus, a universal account identifier request message from a merchant processor and the subsequent response message may be referred to as a merchant processor universal account identifier request message and merchant processor universal account identifier response message. 
     An “authorization request message” may be an electronic message that is sent to a payment processing network and/or an issuer of a payment account to request authorization for a transaction. An authorization request message according to some embodiments may comply with ISO 8583, which is a standard for systems that exchange electronic transaction information associated with a payment made by a consumer using a payment device or payment account. The authorization request message may include an issuer account identifier that may be associated with a payment device or payment account. An authorization request message may also comprise additional data elements corresponding to identification information including, by way of example only: a service code, a CVV (card verification value), a dCVV (dynamic card verification value), an expiration date, etc. An authorization request message may also comprise any information associated with a current transaction, such as the transaction amount, merchant identifier, merchant location, etc., as well as any other information that may be utilized in determining whether to identify and/or authorize a transaction. 
     An “authorization response message” may be an electronic message reply to an authorization request message generated by an issuing financial institution or a payment processing network. The authorization response message may include, by way of example only, one or more of the following status indicators: Approval—transaction was approved; Decline—transaction was not approved; or Call Center—response pending more information, merchant may call the toll-free authorization phone number. The authorization response message may also include an authorization code, which may be a code that an account issuing bank returns in response to an authorization request message in an electronic message (either directly or through the payment processing network) to the merchant&#39;s access device (e.g., POS equipment) that indicates approval of the transaction. The code may serve as proof of authorization. As noted above, in some embodiments, a payment processing network may generate or forward the authorization response message to the merchant. 
     1. EXEMPLARY SYSTEMS 
       FIG. 1  illustrates an exemplary block diagram of an exemplary payment transaction system with two separate payment channels including retail (i.e., brick and mortar) as well as online (i.e., e-commerce) transaction processing systems, according to an exemplary embodiment of the present invention. According to embodiments of the present invention, a transaction processing system may include multiple payment channels, each with a unique transaction flow. For example, the transaction processing system of  FIG. 1  shows a transaction processing system capable of processing both retail and e-commerce payment transactions. 
     The retail transaction processing channel may comprise a typical transaction system including an access device  110 B, a merchant  120  including a merchant retail computer  120 B, an acquirer computer  140 B, a payment processing network computer  150 , and an issuer computer  160 . 
     As used herein, an “issuer” may typically refer to a business entity (e.g., a bank or other financial institution) that maintains financial accounts for the user and often issues a payment device such as a credit or debit card to the user. As used herein, a “merchant” may typically refer to an entity that engages in transactions and can sell goods or services to the user or consumer. As used herein, an “acquirer” may typically refer to a business entity (e.g., a commercial bank or financial institution) that has a business relationship with a particular merchant  120  or similar entity. Some entities can perform both issuer and acquirer functions. 
     An access device  110 B may include a merchant point-of-sale (POS) device, a consumer&#39;s mobile communication device, or any other device that is capable of communicating payment information to a merchant retail computer  120 B. 
     A merchant retail computer  120 B may be in electrical communication with the access device  110 B and may include any server computer programmed to process and manage retail transactions for a merchant  120 . As used herein, a “server computer” is typically a powerful computer or cluster of computers. For example, the server computer can be a large mainframe, a minicomputer cluster, or a group of servers functioning as a unit. In one example, the server computer may be a database server coupled to a Web server. 
     An acquirer computer  140 B may be configured to electrically communicate with the merchant retail computer  120 B and a payment processing network computer  150 . 
     A payment processing network may be disposed between the acquirer computer  140 B and the issuer computer  160  in the system. Furthermore, the merchant retail computer  120 B, the acquirer computer  140 B, the payment processing network, and the issuer computer  160  may all be in operative communication with each other (i.e. although not depicted in  FIG. 1 , one or more communication channels may exist between each of the entities, whether or not these channels are used in conducting a financial transaction). 
     The payment processing network may include data processing subsystems, networks, and operations used to support and deliver authorization services, exception file services, and clearing and settlement services. For example, the payment processing network may comprise a server computer and databases of information. An exemplary payment processing network may include, for example, VisaNet™. Payment processing networks such as VisaNet™ are able to process credit card transactions, debit card transactions, and other types of commercial transactions. VisaNet™, in particular, includes a VIP system (Visa Integrated Payments system) which processes authorization requests and a Base II system which performs clearing and settlement services. The payment processing network may use any suitable wired or wireless network, including the Internet. 
     A typical credit card transaction flow using a payment device at an access device  110 B (e.g., POS location) can be described as follows. (Note that embodiments of the invention are not limited to credit card transactions, but may also include other types of payment transactions including prepaid and debit transactions). A user presents his or her payment device to an access device  110 B to pay for an item or service. The payment device and the access device  110 B interact such that information from the payment device (e.g., PAN, verification value(s), expiration date, etc.) is received by the access device  110 B (e.g., via contact or contactless interface). The merchant retail computer  120 B may then receive this information from the access device  110 B via the external communication interface. The merchant retail computer  120 B may then generate an authorization request message that includes the information received from the access device  110 B (i.e., information corresponding to the payment device) along with additional transaction information (e.g., a transaction amount, merchant specific information, etc.) and electronically transmit this information to an acquirer computer  140 B. The acquirer typically represents, and vouches for, the merchant in financial transactions (e.g., credit card transactions). The acquirer computer  140 B may then receive, process, and forward the authorization request message to a payment processing network for authorization. 
     In general, prior to the occurrence of a credit-card transaction, the payment processing network has an established protocol with each issuer on how the issuer&#39;s transactions are to be authorized. In some cases, such as when the transaction amount is below a threshold value, the payment processing network may be configured to authorize the transaction based on information that it has about the user&#39;s account without generating and transmitting an authorization request message to the issuer computer  160 . In other cases, such as when the transaction amount is above a threshold value, the payment processing network may receive the authorization request message via its external communication interface, determine the issuer associated with the payment device, and forward the authorization request message for the transaction to the issuer computer  160  for verification and authorization. As part of the authorization process, the payment processing network or the issuer computer  160  may analyze a verification value or other datum provided by the payment device. The verification value may be stored at the issuer or the payment processing network (e.g., in one or more of databases). Once the transaction is authorized, the issuer computer  160  may generate an authorization response message (that may include an authorization code indicating the transaction is approved or declined) and transmit this electronic message via its external communication interface to payment processing network. The payment processing network may then forward the authorization response message via a communication channel to the acquirer computer  140 B, which in turn may then transmit the electronic message to comprising the authorization indication to the merchant retail computer  120 B. 
     In the credit card industry, for example, the authorization indication typically takes the form of an authorization code, which is five or six alphanumeric characters, by convention. It serves as proof to the merchant  120  and the consumer that the issuing bank or payment processing network has authorized the transaction, and may be used by the merchant  120  or the consumer as proof of authorization if the issuing bank later disputes the transaction, such as during settlement. 
     When a user wishes to make an online purchase with a merchant  120  over the Internet (i.e. e-commerce), a similar method as described above may be performed except that the user may use his computer apparatus or mobile device to provide information associated with a payment device (e.g., account number, user&#39;s name, expiration date, verification value, etc.) into respective fields on the merchant&#39;s checkout page (e.g., functioning as user computer  110 A). The user computer  110 A may then provide this information to the merchant e-commerce computer  120 A for processing. 
     The transaction processing system of  FIG. 1  also includes an e-commerce transaction processing channel. The e-commerce transaction processing system (i.e., e-commerce transaction channel) may include a user computer  110 A, a merchant  120  including a merchant e-commerce computer  120 A, a merchant processor computer  130 , an acquirer computer  140 A, a payment processing network computer  150 , and an issuer. As is shown in  FIG. 1 , many of the entities may be the same for both e-commerce and retail transaction channels. For example, the payment processing network, issuer, and in some embodiments, the acquirer computer (not shown) may be the same for both transaction channels. 
     A user computer  110 A may include any device operated by a consumer that may communicate with a merchant e-commerce computer  120 A. For example, a user computer  110 A may include a user&#39;s smartphone, tablet, laptop, kiosk operated by a consumer, or any other electronic device capable of communicating with a merchant e-commerce computer  120 A. 
     A merchant e-commerce computer  120 A may comprise one or more server computers that are configured to communicate with a user computer  110 A and/or a merchant processor computer  130 . The merchant e-commerce computer  120 A may be coupled to an e-commerce merchant database that may comprise merchant goods and services that may be listed for sale by the merchant  120  and may be purchased by a consumer over the internet. Accordingly, the merchant e-commerce computer  120 A may be capable of delivering web content to a user computer  110 A, receiving information, commands, and/or requests from the consumer, and may process a transaction or collaborate with a merchant processor computer  130  to process a transaction requested by a consumer. 
     A merchant processor computer  130  may include any server computer that is configured to communicate with a merchant e-commerce computer  120 A and an acquirer computer  140 A. A merchant processor computer  130  may receive e-commerce transaction data from the merchant e-commerce computer  120 A. The e-commerce transaction data may comprise transaction data including transaction details (e.g., transaction amount, time, date, merchant identifier, etc.) as well as a payment token associated with a consumer&#39;s primary account identifier. The consumer may enter or provide their primary account identifier during a checkout or other payment initialization phase with the merchant&#39;s website. 
     For example, in some embodiments, the consumer may provide their primary account identifier through a hosted order page (HOP) or stop order page (SOP) that may be delivered by the merchant processor computer  130  to the user computer  110 A as part of the transaction initiation process. Accordingly, the merchant e-commerce computer  120 A may be configured such that the merchant  120  does not have to store or even have access to a consumer&#39;s payment information during a transaction. Instead, the merchant e-commerce computer  120 A may incorporate the merchant processor computer  130  to process the online payment transaction. The merchant processor computer  130  may deliver a HOP or SOP as part of a transaction payment initialization or payment checkout of a merchant&#39;s e-commerce website. The HOP/SOP may allow a consumer to enter their payment details or otherwise sign into their pre-configured account. The information may be passed to the merchant processor computer  130  which may comprise a database of consumer information. 
     The database of consumer information may store a consumer&#39;s primary account identifier during a registration step for the service or at checkout of the merchant&#39;s website. After registration, the HOP/SOP may not pass a primary account identifier over the internet or other communication network used to complete the transaction. Instead, the HOP/SOP may generate a payment token during transaction initialization or submission at checkout. The payment token may be derived from the primary account identifier that a consumer may enter into the checkout page. The payment token may be considered a tokenized account identifier but the tokenization may be accomplished by applying any suitable tokenization algorithm, scheme, or process, as one of ordinary skill would recognize. Additional information regarding the HOP/SOP pages, the payment token, and the interaction between the merchant e-commerce computer  120 A and the merchant processor computer  130  may be found in U.S. patent application Ser. No. 13/559,250, filed Jul. 26, 2012, by McCullagh et al., the disclosure of which is hereby incorporated by reference in its entirety for all purposes. 
     The merchant processor computer  130  may receive the payment token and may determine a primary account identifier associated with the payment token. The merchant processor computer  130  may then process the transaction by forwarding the primary account identifier associated with the payment token to an appropriate payment processor network computer  150  or acquirer computer  140 A. 
     Once at the acquirer computer  140 A, the transaction processing may continue as a typical payment transaction may be processed, as described above in reference to the retail payment transaction processing. Although the payment token processing is not a typical ISO message as described above in reference to the retail payment transaction, the e-commerce payment transaction request may also be referred to as an authorization request message because a request for an authorization of a payment transaction is being generated, processed through the request being sent to an acquirer computer  140 A, payment processing network computer  150 , and an issuer computer  160 , and an authorization response message including whether the transaction is authorized is returned to the merchant  120  and consumer. Accordingly, both e-commerce and retail payment transactions may include authorization request message and authorization response message processing. 
     However, the authorization response message may have the primary account identifier substituted with the payment token when returned to the merchant processor computer  130  so that the merchant e-commerce computer  120 A does not gain access to the primary account identifier and the system&#39;s security is maintained. Accordingly, the merchant  120  may only receive a payment token and may not receive the primary account identifier during an e-commerce transaction with a consumer. However, such a payment token is not generated during the retail transaction processing. Accordingly, transactions completed using the same consumers primary account identifier may result in two different values at a merchant  120 . 
     Accordingly, the transaction system of  FIG. 1  may incorporate a universal account identifier generator computer  131  (as described in reference to  FIG. 2 ) in order to match or associate consumers transactions across both retail and e-commerce payment channels. However, the universal account identifier generator computer  131  may be incorporated into the payment transactions in a number of different ways including before, during, or after authorization of a payment transaction. Accordingly, a universal account identifier generator computer  131  may be contacted and a universal account identifier may be requested during or after a payment transaction. Additionally, the universal account identifier generator computer may also be referred to as a module or a service and in some embodiments, the functionality may be provided by the merchant processor computer  130  or another entity in the transaction eco-system. 
     A. Universal Account Identifier Generation During Payment Transactions 
     Embodiments of the present invention may be utilized to match payment information both during and after a payment transaction.  FIG. 2  shows another view of the transaction system of  FIG. 1  including both e-commerce and retail payment transaction channels incorporating a universal account identifier generator computer  131  that is contacted during a payment transaction through either channel. 
     As shown in  FIG. 2 , the transaction system may comprise all of the same entities as those described in reference to  FIG. 1  above. Additionally, a universal account identifier generator computer  131  may be incorporated into the transaction system. 
     A universal account identifier generator computer  131  may include any server computer that is configured to receive requests for universal account identifiers from merchants  120  or merchant processor computers  130  and provide universal account identifiers in response. For example, the universal account identifier generator computer  131  may comprise modules or software to receive a universal account identifier request message including transaction data, determine if the transaction data comprises a payment token or a primary account identifier, and generate a universal account identifier associated with the transaction data. As shown in  FIG. 2 , the universal account identifier request message  211 , 221  may be sent from a merchant e-commerce computer  120 A or a merchant retail computer  120 B during a transaction. The process for generating a universal account identifier each type of transaction (e-commerce or retail) is described in detail below and may be seen in the flow chart of  FIG. 4 . 
     Additionally, in some embodiments, the universal account identifier generator computer  131  may comprise a processor, and a computer-readable medium coupled to the processor. The computer readable medium may comprise code executable by the processor for causing the processor to perform a method. The method may comprise receiving first transaction data comprising a payment token or second transaction data comprising a primary account identifier, where the payment token may be derived from the primary account identifier and providing a universal account identifier after receiving the payment token or the account identifier, wherein the universal account identifier may be a substitute for the payment token and the primary account identifier. 
     Furthermore, the universal account identifier generator computer  131  may further comprise a database of universal account identifiers and associated information. So, for example, the universal account identifier generator computer  131  may be capable of associating a universal account identifier with a primary account identifier or a payment token and may associate the universal account identifier with a customer loyalty account number and may provide a number of additional functionality for providing additional value added services in addition to generating and providing a universal account identifier. 
     In some embodiments, the merchant processor computer  130  may comprise a processor, and a computer-readable medium coupled to the processor. The computer-readable medium may comprise code executable by the processor for causing the processor to perform a method. The method may comprise receiving e-commerce transaction data including a payment token from a merchant computer, determining a primary account identifier associated with the payment token, determining a universal account identifier associated with the primary account identifier, and sending the universal account identifier to the merchant computer. In some embodiments, the step of determining a universal account identifier associated with the primary account identifier may include sending a universal account identifier request message comprising the primary account identifier to a universal account identifier generator computer, wherein the universal account identifier generator computer generates a universal account identifier by applying a conversion algorithm to the primary account identifier and receiving a universal account identifier response message comprising the universal account identifier. Alternatively, the step of determining a universal account identifier associated with the primary account identifier may include searching a database for a universal account identifier associated with a received payment token or primary account identifier. Any other suitable methods for determining a universal account identifier may be used as well. The merchant computer may store the universal account identifier in a database comprising e-commerce transaction data and retail transaction data. 
     i. Providing a Universal Account Identifier During an E-Commerce Transaction 
     For e-commerce transactions, a consumer may initiate a transaction using a user computer  110 A and may submit a transaction request to a merchant e-commerce computer  120 A. The merchant e-commerce computer  120 A may host a merchant Website, and may generate and send e-commerce transaction data  210  to a merchant processor computer  130 . As explained previously, e-commerce transaction data  210  may comprise a payment token including a tokenized version of the primary account identifier entered by the consumer. 
     Accordingly, the merchant processor computer  130  may receive the e-commerce transaction data  210  including a payment token and may determine a primary account identifier associated with the payment token. The merchant processor computer  130  may thereafter generate and send a merchant processor universal account identifier request message  211  to the universal account identifier generator computer  131 . The universal account identifier generator computer  131  may then receive the merchant processor universal account identifier request message  211  comprising the transaction data (step  401 ). 
     In some embodiments, the merchant processor universal account identifier request message  211  may comprise the primary account identifier determined by the merchant processor computer  130 . However, the merchant processor universal account identifier request message  211  may alternatively include the payment token. If so, the universal account identifier generator computer  131  may determine the primary account identifier associated with the payment token by sending a de-tokenization request message  331  to the merchant processor and receiving a de-tokenization response message  332  from the merchant processor (steps  403 A- 405 A). Alternatively, where the universal account identifier generator computer  131  is incorporated into the merchant processor or otherwise has access to the consumer database stored at the merchant processor, the universal account identifier generator computer  131  may determine the primary account identifier by searching the relevant consumer database (not shown). 
     Otherwise, the merchant processor universal account identifier request message  211  may comprise transaction data including a primary account identifier and the universal account identifier generator computer  131  generates the universal account identifier for the primary account identifier received in the merchant processor universal account identifier request message  211  (step  405 B). Thereafter, the universal account identifier generator computer  131  may generate and send a universal account identifier response message  212  including the universal account identifier to the merchant processor computer  130  (step  406 ). 
     The universal account identifier may be generated by applying a conversion algorithm to the received primary account identifier to convert the primary account identifier to a universal account identifier that is unique, reproducible, and repeatable. For example, the conversion algorithm may produce a non-sequential alphanumeric sequence for the universal account identifier. In some embodiments, the conversion algorithm may utilize, for example, a one-way cryptographically secure hash, meaning that the universal account identifier is not readily translatable back to the original account number. Additionally, the universal account identifier may not be referentially transparent meaning that the same universal account identifier may be generated for the same primary account identifier. The conversion algorithm may be implemented in any suitable manner as would be recognized by one or ordinary skill. 
     During the generation and subsequent receiving of the universal account identifier or after receiving the universal account identifier, the merchant processor computer  130  may submit the transaction data for processing by generating an authorization request message comprising the primary account identifier and submitting the authorization request message to an acquirer  140  and subsequent payment processing network  150  associated with the merchant processor and the consumer&#39;s payment account. The payment processing network  150  and issuer  160  may subsequently return an authorization response message and the merchant processor computer  130  may substitute the primary account identifier in the authorization response message with the universal account identifier. Accordingly, the merchant e-commerce computer  120 A may receive the universal account identifier in the authorization response message and may store the universal account identifier in a merchant analytics computer and/or database  121 . As will be explained in further detail below, the merchant  120  may also receive a universal account identifier during the processing of the retail transaction and thus, the merchant  120  may receive the same universal account identifier for both retail and e-commerce transactions completed with a consumer&#39;s primary account identifier. 
     Accordingly, by incorporating the universal account identifier generation and retrieval into the transaction flow during transaction processing, the merchant processor and the merchant  120  may identify a customer immediately during the authorization and the merchant processor may react appropriately. For example, by providing discounts, offers, fraud analysis, or any other actions that are aided by identifying a consumer&#39;s behavior across multiple payment channels. Accordingly, embodiments of the present invention provide a number of advantages. 
     ii. Providing a Universal Account Identifier During a Retail Transaction 
     Retail transactions originating from a brick and mortar or physical location may be processed directly from the retail location by forwarding the primary account identifier information received during the transaction at the merchant retail computer  120 B to the universal account identifier generator computer  131  before or in parallel with sending the transaction data or an authorization request message to an acquirer for transaction processing. 
     Accordingly, when a consumer swipes their portable consumer device (e.g., a credit or debit card) at the access device  110 B, the merchant retail computer  120 B may send a merchant universal account identifier request message  221  including the primary account identifier that is provided by the portable consumer device and received at the access device  110 B. Thereafter, the merchant retail transaction computer  120 B may conduct the authorization request and response message processing, as usual. However, the merchant retail computer  120 B may associate the transaction data with the universal account identifier and store the transaction data with the received universal account identifier in the analytics computer and database  121  for future analytical analysis of consumer behavior. Accordingly, as with the e-commerce transactions, the merchant  120  may be able to determine a full transaction history for the consumer before processing the transaction and thus may be able to better determine fraudulent activity, provide offers and rewards associated with value added services, and otherwise provide a better consumer experience. 
     Additionally, although not shown in  FIG. 2 , a transaction system may comprise additional transaction payment channels including, for example, a mobile channel, that also could do a real-time request to the universal account identifier generator computer  131  and may use the received data to store the transaction data with the universal account identifier to obtain a full transaction history of the user. 
     B. Universal Account Identifier Generation after Payment Transactions 
     Most merchant payment systems are fairly closed and not subject to changes in transaction processing. Accordingly, some embodiments of the present invention provide universal account identifiers for requests received after payment transaction have been completed. Accordingly, embodiments of the present invention may also provide universal account identifiers after authorization of e-commerce and retail payment transactions. 
       FIG. 3  illustrates an exemplary block diagram of a universal account identifier generation system that may be used to match e-commerce and retail transactions after transaction processing, according to another embodiment of the present invention. 
     In the system shown in  FIG. 3 , the merchant e-commerce computer  120 A and merchant retail computer  120 B complete transactions as described in reference to  FIG. 1  and only after receiving an authorization response message for a transaction, does the merchant  120  request a universal account identifier to associate with the transaction data. In  FIGS. 3 and 4 , like reference numerals designate like elements. 
     The merchant  120  may comprise an analytics computer and/or database  121  that may comprise a computer that is configured to receive both e-commerce transaction data  310  as well as retail transaction data  320  from the merchant computers  120 A/ 120 B, and send universal account identifier request messages  330  for both the retail transaction data and the e-commerce transaction data. The merchant analytics computer  121  may store the e-commerce transaction data and retail transaction data in the merchant analytics database  121 . Accordingly, the analytics computer and/or database  121  may comprise transaction data comprising either payment tokens or primary account identifiers. However, because the primary account identifiers and payment tokens may be different even when the same consumer account is used in the e-commerce and retail transactions, the merchant analytics computer and/or database  121  may not associate both e-commerce transactions and retail transactions with the same consumer. 
     The merchant analytics computer and database  121  comprising the consumer&#39;s primary account identifiers and tokenized or hashed primary account payment tokens may send a universal account identifier request message  330  to a universal account identifier generator computer  131  to for both the e-commerce transaction data  310  and retail transaction data  320 . 
     Accordingly, the universal account identifier generator computer  131  may be implemented with a web service interface  330 A that accepts either primary account identifier information from retail transactions or tokenized/hashed primary account identifiers (i.e., payment tokens) from e-commerce transactions and returns the universal account identifier for that primary account identifier or payment token in a universal account identifier response message  333 . If the universal account identifier generation computer  131  receives a tokenized payment token, the payment token may be de-tokenized such that the universal account identifier relates to the primary account identifier information used during retail transactions. When the universal account identifier generator computer  131  receives tokenized account data in a universal account identifier request message  330  instead of a primary account identifier or account data, the universal account identifier generator computer  131  may call or send a request to the merchant processor to obtain a primary account identifier first. This process is described in further detail in reference to  FIG. 4  below. 
     Additionally, in some embodiments, the universal account identifier generator computer  131  may implement a batch file interface  330 B that may accept the primary account identifiers or payment tokens in batch files as well. Batch files comprise many different primary account identifiers or payment tokens and the universal account identifier generation computer  131  may convert all of the many different account numbers or payment tokens (and return them to the merchant  120  in a universal account identifier response message  333 ) at the same time or piece-meal. Again, the merchant processor may be called to convert the payment tokens to convert the account numbers before generating universal account identifiers (step  403 A). 
     The method steps referenced above, may now be described in further detail by reference to  FIGS. 4-5 . 
     II. EXEMPLARY METHODS 
       FIG. 4  illustrates an exemplary flow diagram of an exemplary method of generating and providing a universal account identifier to a requester by a universal account identifier generator computer  131 , according to one embodiment of the present invention. 
     In step  401 , the universal account identifier generator computer  131  receives transaction data including a payment token or a primary account identifier. The request may be provided during a transaction (as shown in  FIG. 2 ) or after a transaction has been completed (as shown in  FIG. 3 ). For example, in some embodiments, a merchant  120  may request universal account identifiers for transaction data in either individual universal account identifier request messages  331 A or by batch universal account identifier request messages  331 B. For instance, a merchant may periodically (e.g., end of each day, week, quarter, etc.) update an analytics computer and/or database  121  with all of the transactions that have been completed in that period across all of the different payment channels including retail, e-commerce, mobile, etc. and during or after the update, the merchant computer  121  may request universal account identifiers for the underlying transaction data. Accordingly, the merchant  120  may periodically send a batch universal account identifier request message  331 B to a universal account identifier generator computer  131  for batch generation of universal account identifiers for a number of different transactions at the same time. 
     In step  402 , the universal account identifier generator computer  131  may determine whether the transaction data includes a payment token or a primary account identifier for each transaction. The contents of the universal account identifier request message may be determined through any suitable method. For example, the universal account identifier generator computer  131  may have a database of primary account identifiers or validated BINs for which primary account identifiers may be recognized. Accordingly, the universal account identifier generator computer  131  may check the database for a matching primary account identifier in the database and if no such match is found, may determine that the information is a payment token. Additionally, in some embodiments, the payment token and the primary account identifiers may have different formats or different numbers of digits. Furthermore, the transaction data may comprise a flag or other identifier that informs the universal account identifier generator computer  131  that the information comprises a payment token or a primary account identifier. 
     In step  403 A, the universal account identifier generator computer  131  may determine that the transaction data includes a payment token and may send a de-tokenization request message to a merchant processor computer  130  associated with the transaction data. The universal account identifier generator computer  131  may determine the appropriate merchant processor computer  130  through any suitable method including that a merchant processor identifier is included in the transaction data, the merchant analytics computer  121  may respond to a request for identifying the relevant merchant processor computer  130 , or through any other suitable method. 
     The merchant processor computer  130  may receive the de-tokenization request message and may determine a primary account identifier associated with the payment token. The merchant processor computer  130  may determine the primary account identifier through any suitable method, including the examples provided above in reference to  FIG. 3 . The merchant processor computer  130  may determine the primary account identifier associated with the payment token included in the de-tokenization request message and may generate a de-tokenization response message including the primary account identifier. The merchant processor computer  130  may send the de-tokenization response message to the universal account identifier generator computer  131  and may include any other relevant information including any associated transaction data, relevant account information, or any other suitable information. 
     In step  404 A, the universal account identifier generator computer  131  may receive the de-tokenization response message including a primary account identifier associated with the payment token from the merchant processor computer  130 . The universal account identifier generator computer  131  may check the validity of the primary account identifier and may store the primary account identifier in a consumer account database for future look-up use (if the payment token may be utilized and associated with the consumer in the future). 
     In step  405 A, the universal account identifier generator computer  131  may generate a universal account identifier by applying a conversion algorithm to the received primary account identifier. The conversion algorithm may generate a universal account identifier that may be cryptographically secure (e.g., a hashable one-way security mechanism) and it may be referentially transparent, meaning that every time a request for a universal account identifier is received including a particular primary account identifier or payment token, the same universal account identifier may be generated and returned to the requester. 
     For example, using the example above, the primary account identifier (e.g., 1111222233334444) used during the retail transaction where the consumer purchased the shirt may be used to generate a universal account identifier. The conversion algorithm may include, for example, a one-way hash that may generate a universal account identifier of, for example, 1A3B2C4D. The conversion algorithm including, for example, a one-way hash, may ensure that a malicious third party may not be capable of reverse engineering the primary account number if they obtain the universal account identifier. Additionally, the conversion algorithm may be implemented such that anytime that the universal account identifier generator computer  131  receives a request for a universal account identifier request message corresponding to the primary account identifier 111122223333444, or related payment token 4444333322221111, the conversion algorithm may generate the same universal account identifier (1A3B2C4D) by applying the conversion algorithm to the primary account identifier. 
     In step  406 , the universal account identifier generator computer  131  provides the universal account identifier to the requestor system in the form of a universal account identifier response message. In some embodiments, including those where the universal account identifier request message is sent from the requestor after a transaction has been completed or processed, the requestor may be a merchant analytics computer  121 . Alternatively, in other embodiments where the transaction may be in the process of being completed, the requestor may include a merchant processor computer  130 , payment processing network computer  150 , issuer computer  160 , or any other entity within the transaction processing ecosystem  100 . 
     Eventually, the universal account identifier may be stored in a requestor database (e.g., merchant analytics database  121  or other consumer database) and may be used to match transaction data across a broad number of payment channels. For example, the methods and systems can be used to match e-commerce and physical point-of-sale (POS) transaction data that is associated with a single underlying account so that a merchant  120  can perform data analytics, fraud analytics, and/or other processing on that account. For example, a merchant  120  may be able to better determine the risk that a transaction is fraudulent when the merchant  120  has a single database with all of a consumer&#39;s transactions across multiple payment channels correlated and identified. For instance, a merchant  120  may be able to determine a consumers transaction patterns and analyze current behavior versus their past behavior to determine whether the merchant should decline or investigate a purchase transaction. This is one exemplary use of embodiments of the present invention and one of ordinary skill would understand many different possible uses for the universal account identifier. Similar processes could be used to identify changing consumer behavior in relation to buying patterns, interests, and overall engagement with the merchant in order to better understand the consumer&#39;s needs and interests. 
     Additionally, as can be seen in  FIG. 4 , if the transaction data includes a primary account identifier, the process of determining and requesting a de-tokenization of the payment token is not necessary and the universal account identifier generator computer  131  may generate a universal account identifier using the information contained in the universal account identifier request message. 
     Accordingly, in step  405 B, the universal account identifier generator computer  131  determines that the transaction data includes a primary account identifier and the universal account identifier generator computer  131  generates a universal account identifier. The universal account identifier may be generated through any suitable manner and may include applying a conversion algorithm to the primary account identifier to generate a repeatable and reproducible universal account identifier. 
     Additionally, as some examples showed in  FIGS. 2 and 3 , number of changes may be introduced into the flow diagram described above depending on the embodiment of the present invention being implemented. Any other alterations of the process described above would be understood by one of ordinary skill and embodiments of the present invention may be used before, during, or after a transaction and where a requester may include a merchant computer  120 , merchant processor computer  130 , acquirer computer  160 , payment processing network computer  150 , or any other entity within a payment transaction eco-system  100 . 
       FIG. 5  illustrates an exemplary flow diagram of an exemplary method of requesting and receiving a universal account identifier during the processing of an e-commerce transaction by a merchant processor computer  130 , according to one embodiment of the present invention. 
     In step  501 , the merchant processor computer  130  may receive e-commerce transaction data including a payment token. In step  502 , the merchant processor computer  130  may determine a primary account identifier associated with the payment token. These steps are described in further detail above in reference to a typical e-commerce transaction processing method. 
     In step  503 , the merchant processor computer  130  may send a universal account identifier request message comprising the primary account identifier to a universal account identifier generator computer  131 . The merchant processor computer  130  may submit the universal account identifier requests for all merchants in which they process transactions, or in other embodiments, the merchant processor computer  130  may have specialized processing methods for individual merchants. Either way, the merchant processor computer  130  may determine that the merchant e-commerce computer  120 A may benefit from or is requesting a universal account identifier and may submit such a request to the universal account identifier generator computer  131 . 
     In step  504 , the universal account identifier generator computer  131  generates and sends a universal account identifier associated with the primary account identifier to the merchant processor computer  130  in a universal account identifier response message. The steps and methods performed by the universal account identifier generator computer  131  are described in further detail above in reference to the description of  FIG. 4 . 
     In step  505 , the merchant processor computer  130  receives the universal account identifier response messaging including the universal account identifier. In step  506 , the merchant processor computer  130  processes the transaction using the transaction data. Processing the transaction may include sending an authorization request message to an acquirer computer  140 , payment processing network computer  150 , and subsequently an issuer computer  160  of an issuer of the consumer account associated with the received payment token. The merchant processor computer  130  may then receive an authorization response message that may be generated by the issuer computer  160  and routed through the payment processing network computer  150  and acquirer computer  140  and may determine whether a transaction is authorized. 
     In step  507 , the merchant processor computer  130  may provide the universal account identifier to the merchant e-commerce computer  120 A along with an authorization response message associated with the transaction. Accordingly, the merchant e-commerce computer  120 A may determine both the result of the transaction authorization request and the universal account identifier associated with the transaction. The merchant e-commerce computer  120 A may thereafter store the universal account identifier in a merchant analytics database  121  and thus, may have a universal account identifier instead of, or in addition to, a payment token. Accordingly, the merchant  120  may be able to match transactions processed through third party service providers incorporating tokenization schemes that the consumer may not have access to using a universal account identifier. 
     Additionally, the merchant analytics computer and/or database  121  may receive the universal account identifier for retail transactions as explained previously in reference to  FIG. 2 . Accordingly, the merchant  120  may be able to store both e-commerce and retail transactions in a central merchant analytics computer  121  that has a consumer&#39;s full transaction history. Additionally, the merchant  120  may be capable of matching e-commerce and retail transaction data during transaction processing and may use a consumer&#39;s full transaction history to make decisions regarding a transaction including providing value added services, fraud decisions, generate, track, and apply loyalty and offer information, or complete any other transaction decisions. 
     A number of additional embodiments may be implemented and the above described method is only one embodiment of the present invention. For example, in one specific embodiment, the universal account identifier may only be provided to the merchant e-commerce computer  120 A if the transaction is authorized. Additionally, in other embodiments, the universal account identifier may be returned to the merchant e-commerce computer  120 A before the transaction is completed. 
     IV. EXEMPLARY COMPUTER SYSTEM 
     The various participants and elements in  FIGS. 1-3  may operate one or more computer apparatuses (e.g., a server computer) to facilitate the functions described herein. Any of the elements in  FIGS. 1-3  may use any suitable number of subsystems to facilitate the functions described herein. Examples of such subsystems or components are shown in  FIG. 6 . The subsystems such as a printer  608 , keyboard  616 , fixed disk  618  (or other memory comprising computer readable media), monitor  612 , which is coupled to a display adapter  610 , and others are shown. Peripherals and input/output (I/O) devices, which couple to I/O controller  602 , can be connected to the computer system by any number of means known in the art, such as serial port  614 . For example, serial port  614  or external interface  620  can be used to connect the computer apparatus to a wide area network such as the Internet, a mouse input device, or a scanner. The interconnection via system bus allows the central processor  606  to communicate with each subsystem and to control the execution of instructions from system memory  604  or the fixed disk  618 , as well as the exchange of information between subsystems. 
     Specific details regarding some of the above-described aspects are provided below. The specific details of the specific aspects may be combined in any suitable manner without departing from the spirit and scope of embodiments of the invention. 
     It should be understood that the present invention as described above can be implemented in the form of control logic using computer software in a modular or integrated manner. Based on the disclosure and teachings provided herein, a person of ordinary skill in the art will know and appreciate other ways and/or methods to implement the present invention using hardware and a combination of hardware and software 
     Any of the software components or functions described in this application, may be implemented as software code to be executed by a processor using any suitable computer language such as, for example, Java, C++ or Perl using, for example, conventional or object-oriented techniques. The software code may be stored as a series of instructions, or commands on a computer readable medium, such as a random access memory (RAM), a read only memory (ROM), a magnetic medium such as a hard-drive or a floppy disk, or an optical medium such as a CD-ROM. Any such computer readable medium may reside on or within a single computational apparatus, and may be present on or within different computational apparatuses within a system or network. 
     The above description is illustrative and is not restrictive. Many variations will become apparent to those skilled in the art upon review of the disclosure. The scope of the invention should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the pending claims along with their full scope or equivalents. 
     One or more features from any embodiment may be combined with one or more features of any other embodiment without departing from the scope of the invention. A recitation of “a”, “an” or “the” is intended to mean “one or more” unless specifically indicated to the contrary.