What is source external ID in SAP (SCM-APO-PPS-FOT - Flexible Order Transactions)?

SAP Term: source external ID

• Component: SCM-APO-PPS-FOT

• Component Name: Flexible Order Transactions

• Description: Freely definable number you can use instead of the APO order number to uniquely identify an APO order. For example, motor number or vehicle number. Source means parent order in split, surviving order in merge, and original order in product change.

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• Key Concepts: 
  Source external ID is a unique identifier used to identify a source of supply in the Flexible Order Transactions (FOT) component of SAP's Supply Chain Management (SCM), Advanced Planning and Optimization (APO), and Production Planning and Scheduling (PPS) modules. It is used to differentiate between different sources of supply, such as suppliers, warehouses, or other locations. 
  
  How to use it: 
  The source external ID is used to identify the source of supply in the FOT component. It is entered into the system when creating a new source of supply, and can be used to track orders from that source. The ID can also be used to filter orders by source in reports or other queries. 
  
  Tips & Tricks: 
  When creating a new source of supply, it is important to ensure that the source external ID is unique. This will help prevent confusion when tracking orders from different sources. Additionally, it is important to keep track of the IDs for each source, as they may be needed for future reference. 
  
  Related Information: 
  For more information on the FOT component of SAP's SCM-APO-PPS modules, please refer to the official SAP documentation. Additionally, there are many online resources available that provide tutorials and tips on using this component.