Message type: E = Error
Message class:  MAFWKF - Analyzer Framework: Messages for Key Figures 
Message number: 421
Message text: First assign a single records procedure to final results procedure &
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The SAP error message MAFWKF421 typically occurs in the context of the SAP system when dealing with the assignment of procedures in the Material Management (MM) or Production Planning (PP) modules. This error indicates that a single records procedure has not been assigned to the final results procedure, which is necessary for the system to process the data correctly.
Cause: The error is usually caused by one of the following reasons: Configuration Issue: The system configuration for the procedures is incomplete or incorrect. Specifically, the final results procedure is not linked to a single records procedure. Missing Assignment: The necessary assignment between the single records procedure and the final results procedure has not been made in the system settings. Data Entry Error: There may be an error in the data entry process where the procedures are not correctly defined or selected.
Solution: To resolve the error, you can follow these steps: Check Configuration: Go to the configuration settings in
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