How To Fix /SAPAPO/OM_ERROR2000 - Setup matrix still used by at least one resource

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 000

• Message text: Setup matrix still used by at least one resource

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2000 - Setup matrix still used by at least one resource ?

  The SAP error message /SAPAPO/OM_ERROR2000 indicates that a setup matrix is still being used by at least one resource in the SAP Advanced Planning and Optimization (APO) module. This error typically arises when you attempt to delete or modify a setup matrix that is still linked to a resource, which can lead to inconsistencies in planning and execution.
  Cause:
  
  Active Setup Matrix: The setup matrix is currently assigned to one or more resources in the system.
  Dependencies: There may be dependencies or configurations that are preventing the deletion or modification of the setup matrix.
  Incorrect Configuration: The setup matrix might be incorrectly configured, leading to it being referenced by resources that should not be using it.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Resource:
  
  Use transaction code /SAPAPO/OM_SETUP to view the setup matrices and their assignments.
  Check which resources are currently using the setup matrix in question.
  
  
  
  Remove Assignments:
  
  If you find that the setup matrix is assigned to resources, you will need to remove these assignments.
  Navigate to the resource configuration and unlink or delete the setup matrix from the resource.
  
  
  
  Check for Dependencies:
  
  Ensure that there are no other dependencies or configurations that might be preventing the deletion of the setup matrix.
  Review any related planning books or data that might reference the setup matrix.
  
  
  
  Delete or Modify the Setup Matrix:
  
  Once the setup matrix is no longer in use, you can proceed to delete or modify it as needed.
  
  
  
  Recheck:
  
  After making changes, recheck to ensure that the error does not persist.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/OM_SETUP for setup matrix management and /SAPAPO/OM_RESOURCE for resource management.
  Documentation: Refer to SAP documentation for detailed guidance on setup matrices and resource management in APO.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support or consulting with an SAP APO expert for further assistance.
  
  By following these steps, you should be able to resolve the error and manage your setup matrices effectively within the SAP APO environment.