Configure Substitution Strategy
Application component: ATP: Alternative-Based Confirmation
App type: Transactional
Line of business: Supply Chain
Leading industry: Cross Industry
Solution capability: Advanced Available-to-Promise  (S/4)
Description:  With this app, you can define which substitution method is used and which alternative determination is applied to ensure that requirements are confirmed when a requirement can't be confirmed as originally requested. All possible material-plant combinations that can fulfill the requirement are calculated and considered. Substitution strategies are assigned to alternative controls maintained in the Configure Alternative Control app. You can use this app if you have the business role Order Fulfillment Manager (R0226). 
With this app, you can define which substitution method is to be used and how the substitution method is to be applied to ensure that requirements are confirmed when a combination of material and plant in a sales order document cannot be confirmed as requested. Substitution strategies are assigned to alternative controls maintained in the Configure Alternative Control app.
Key features:   Define and display strategies to control how and in which context the requested plant, storage location, or product is substituted when availability is checked. To enable this, you can choose between substitution method sources All Possible Plants and Substitution Master Data for substitution method Plant Substitution. For substitution methods Storage Location Substitution and Product Substitution, use substitution method source Substitution Master Data.  Use a substitution strategy combining plant, product, and storage location substitution to ensure the best possible confirmations. The result of the first substitution method is used as input for the next substitution method. Use inline substitution to replace the delivering plant for sales order requirements: after substitution, the sales order contains a single requirement item and the originally requested delivering plant is replaced by the alternative delivering plant. Use subitem generation to replace the delivering plant, product, or storage location for requirements: after substitution, the original requirement item in the order document is retained and a subitem is generated for each material-plant combination used to fulfill the requirement. The subitem states the new plant or substitute product used to confirm the requirement, as well as the confirmed delivery date and quantity. Configure your system to choose the best possible solution based on the stock availability in potential delivering plants: if a single delivering plant can confirm a requirement, inline substitution is possible and is used. Otherwise, subitems are generated. Define how the most appropriate substitute plant or product is chosen when multiple options can fulfill a requirement equally. To define in which sequence the substitute products are considered in the availability check, define corresponding substitution sequence values in the product substitution master data. The availability check considers the substitution sequence with the lowest sequence value first. Define to which substitute the remaining open quantity is assigned when subitems have been created and a full confirmation is not possible. Display and navigate to the: Alternative controls using a substitution strategy Alternative determinations used in a substitution strategy   
Business roles: Order Fulfillment Manager
Order Fulfillment Manager : 
Is responsible to configure and optimize the order fulfillment process according the company strategy.