How To Fix /SAPAPO/OM_ERROR391 - Pegging area cannot be deleted, as it is still being used by RPM matrix

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR -

• Message number: 391

• Message text: Pegging area cannot be deleted, as it is still being used by RPM matrix

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR391 - Pegging area cannot be deleted, as it is still being used by RPM matrix ?

  The SAP error message /SAPAPO/OM_ERROR391 indicates that a pegging area cannot be deleted because it is still in use by the Resource Planning Matrix (RPM) in SAP Advanced Planning and Optimization (APO). This typically occurs when there are dependencies or references to the pegging area that prevent its deletion.
  Cause:
  
  Active Pegging Relationships: The pegging area is still being referenced by active pegging relationships in the RPM matrix.
  Open Planning Activities: There may be ongoing planning activities or processes that are utilizing the pegging area.
  Data Integrity Constraints: SAP enforces data integrity, and if the pegging area is linked to other planning objects, it cannot be deleted until those links are resolved.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Pegging Relationships:
  
  Use transaction /SAPAPO/RPM to access the Resource Planning Matrix.
  Identify any active pegging relationships that reference the pegging area you are trying to delete.
  
  
  
  Remove Dependencies:
  
  If there are active relationships, you will need to either delete or modify them to remove the dependency on the pegging area.
  Ensure that no planning activities are currently using the pegging area.
  
  
  
  Review Planning Books:
  
  Check if the pegging area is being used in any planning books or scenarios. If so, you may need to adjust or remove those references.
  
  
  
  Re-run Planning:
  
  After removing the dependencies, re-run the planning process to ensure that the changes are reflected and that the pegging area is no longer in use.
  
  
  
  Delete the Pegging Area:
  
  Once all dependencies have been resolved, attempt to delete the pegging area again.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/RPM, /SAPAPO/OM, and others that may help in managing pegging areas and RPM.
  Documentation: Refer to SAP Help documentation for detailed information on managing pegging areas and understanding the RPM matrix.
  Support: If the issue persists, consider reaching out to SAP support or consulting with your SAP Basis or APO team for further assistance.
  
  By following these steps, you should be able to resolve the error and successfully delete the pegging area.