How To Fix P2536 - Completion confirmations already reversed, change of session not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: P2 - Messages for HR Time Management

• Message number: 536

• Message text: Completion confirmations already reversed, change of session not possible

What causes this issue?

You wish to change from cancel mode to create mode. You have already
cancelled order completion confirmations in cancel mode.

System Response

It is not possible to change mode.

How to fix this error?

Please save the cancelled order completion confirmations.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message P2536 - Completion confirmations already reversed, change of session not possible ?

  The SAP error message P2536 "Completion confirmations already reversed, change of session not possible" typically occurs in the context of production order processing, particularly when dealing with confirmations in the Production Planning (PP) module. This error indicates that the system has detected that completion confirmations for a production order have already been reversed, and as a result, the user is not allowed to change the session or perform certain actions.
  Cause:
  
  Reversed Confirmations: The primary cause of this error is that the completion confirmations for the production order have already been reversed. This means that the system has recorded that the production process has been undone, and it prevents further changes to ensure data integrity.
  Session Management: The error may also arise if there are attempts to change sessions or perform actions that are not allowed due to the current state of the order.
  
  Solution:
  
  Check Confirmation Status: Verify the status of the completion confirmations for the production order in question. You can do this by navigating to the production order and checking the confirmation history.
  Reconfirm if Necessary: If the completion confirmations were reversed in error, you may need to re-enter the confirmations. This can be done through the appropriate transaction (e.g., CO11N for confirmations).
  Avoid Session Changes: If you are trying to change sessions, ensure that you are not in a state that requires confirmation or processing. Complete any necessary actions before attempting to change sessions.
  Consult Documentation: Review SAP documentation or help resources for specific guidance on handling confirmations and production orders.
  Contact Support: If the issue persists or if you are unsure about the next steps, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO11N (Enter Production Order Confirmation), CO15 (Confirm Production Order), and COHV (Mass Processing of Production Orders).
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  User Permissions: Ensure that you have the necessary permissions to perform the actions you are attempting, as restrictions may also lead to similar error messages.
  
  By following these steps, you should be able to address the P2536 error and continue with your production order processing in SAP.