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Setting Up the AFS Change Reason Code in Materials Management 
Use
In the AFS system you can set up a change reason code to support quality management. The change reason code provides information on why the vendor in a purchase requisition was manually changed. The definition of the change reason code is plant-specific and is based on R/3 quality management.
If you have set up a change reason code and change the vendor in a purchase requisition, a dialog box will appear which asks you the reason for the change. The code group and the code you enter in this position will be saved in the statistical change log of the purchase requisitions.
Procedure
To set up a change reason code in materials management, do the following steps: