Process for postage verification during the transport of postal consignments by means of an electronic parcel compartment facility, in which multiple unique identification codes are stored in a storage means, whereby a device for the issuance of postage stamps is integrated into the electronic parcel compartment facility, characterized by the following features: - the identification codes are stored in the storage medium that is connected to the device for the issuance of postage stamps; - an identification code from the storage means is issued; - the identification code is assigned to a postage stamp in a processing means of the device and the device issues said postage stamp which comprises at least the issued identification code; - the identification code on the postage stamp belongs to an identification code cycle that is assigned to the distribution channel of the sale of the postage stamp by means of an electronic parcel compartment facility; - the identification code is indicated in the storage means through at least two status indicators 1 and 2 of which the first status indicator 1 indicates that a postage stamp with said identification code has been printed and the second status indicator 2 indicates that no postage stamp with said identification code has been printed; - the status indicator of the identification code in the storage medium is set to 2 at the start of the process; - the status indicator of the issued identification code is set to 1 after the device issued a postage stamp with the issued identification code; - the status indicator of the issued identification code is set to 2, when the identification code of the postage stamp is detected at a parcel compartment facility and the corresponding postal consignment is placed in the parcel compartment facility; - detection of customer data during a customer identification of a customer in a means of a control unit of the parcel compartment facility and assignment of the customer data to the customer identification; - an identification code of a postage stamp on a postal consignment is detected at the parcel compartment facility and compared exclusively to identification codes, which have been generated and sold by means of an electronic parcel compartment facility, and to the corresponding status indicators in the storage means, whereby an identification code thus detected that is not stored in the storage means or whose status indicator is 2, initiates a signal and - the signal triggers at least one function of the parcel compartment facility that initiates saving of the customer data of the customer aiming to place the postal consignment. - the identification codes are stored in the storage medium that is connected to the device for the issuance of postage stamps; - an identification code from the storage means is issued; - the identification code is assigned to a postage stamp in a processing means of the device and the device issues said postage stamp which comprises at least the issued identification code; - the identification code on the postage stamp belongs to an identification code cycle that is assigned to the distribution channel of the sale of the postage stamp by means of an electronic parcel compartment facility; - the identification code is indicated in the storage means through at least two status indicators 1 and 2 of which the first status indicator 1 indicates that a postage stamp with said identification code has been printed and the second status indicator 2 indicates that no postage stamp with said identification code has been printed; - the status indicator of the identification code in the storage medium is set to 2 at the start of the process; - the status indicator of the issued identification code is set to 1 after the device issued a postage stamp with the issued identification code; - the status indicator of the issued identification code is set to 2, when the identification code of the postage stamp is detected at a parcel compartment facility and the corresponding postal consignment is placed in the parcel compartment facility; - detection of customer data during a customer identification of a customer in a means of a control unit of the parcel compartment facility and assignment of the customer data to the customer identification; - an identification code of a postage stamp on a postal consignment is detected at the parcel compartment facility and compared exclusively to identification codes, which have been generated and sold by means of an electronic parcel compartment facility, and to the corresponding status indicators in the storage means, whereby an identification code thus detected that is not stored in the storage means or whose status indicator is 2, initiates a signal and - the signal triggers at least one function of the parcel compartment facility that initiates saving of the customer data of the customer aiming to place the postal consignment.