How To Fix /SAPAPO/AMON356 - Change not possible; selection belongs to another user

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/AMON -

• Message number: 356

• Message text: Change not possible; selection belongs to another user

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/AMON356 - Change not possible; selection belongs to another user ?

  The SAP error message /SAPAPO/AMON356 Change not possible; selection belongs to another user typically occurs in the context of SAP Advanced Planning and Optimization (APO) when a user attempts to modify or delete a selection that was created by another user. This is a common issue in collaborative environments where multiple users are working on the same data sets.
  Cause:
  
  Ownership of Selection: The selection you are trying to modify is owned by another user. SAP APO has a mechanism to prevent users from changing selections that they do not own to maintain data integrity and avoid conflicts.
  User Locking: The system may have a locking mechanism that restricts changes to selections based on user ownership.
  Session Management: If a user has created a selection and is still active in the system, other users may be restricted from modifying that selection.
  
  Solution:
  
  Check Ownership: Verify who the owner of the selection is. If you need to make changes, you may need to contact the owner to either make the changes themselves or to release the selection for you.
  Create a New Selection: If you cannot modify the existing selection, consider creating a new selection that meets your requirements.
  Use Transaction Codes: If you have the necessary authorizations, you can use transaction codes like /SAPAPO/AMON to manage selections and check for ownership.
  Consult with Your Administrator: If you believe you should have access to modify the selection, consult with your SAP administrator to check your user permissions and the selection's ownership.
  Wait for Release: If the selection is currently in use by another user, you may need to wait until they have finished their work and released the selection.
  
  Related Information:
  
  User Roles and Authorizations: Ensure that your user role has the necessary permissions to modify selections in SAP APO.
  SAP Notes: Check for any relevant SAP Notes that may address this issue or provide additional guidance.
  Documentation: Refer to the SAP APO documentation for more details on selection management and user permissions.
  
  By following these steps, you should be able to address the error message and continue your work in SAP APO.