What is product substitution reason in SAP SCM-APO-ATP - Global Available-to-Promise?

SAP Term: product substitution reason

• Component: SCM-APO-ATP

• Component Name: Global Available-to-Promise

• Description: A setting in Customizing for the rules-based availability check. The necessity of the substitution can be explained in the product substitution reason for example, defective part. The product substitution reason is only for explanatory purposes.

Smart SAP Assistant

• Key Concepts: 
  Product substitution reason is a feature of the Global Available-to-Promise (ATP) component of SAP's Supply Chain Management (SCM) module. It allows users to substitute one product for another in order to fulfill customer orders. This feature is useful when a customer requests a product that is not available, or when a product is out of stock. 
  
  How to use it: 
  Product substitution reason can be enabled in the ATP configuration settings. Once enabled, users can select a substitution reason when substituting one product for another. This allows users to track the reasons why products are being substituted. 
  
  Tips & Tricks: 
  When using product substitution reason, it is important to ensure that the substituted product meets the customer's requirements. It is also important to ensure that the substituted product is available and in stock. 
  
  Related Information: 
  For more information on product substitution reason, please refer to the SAP Help Portal or contact your local SAP representative.