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

/SAPAPO/OM_ERROR2000 - Overview

• 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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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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