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

P2536 - Overview

• 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.

P2536 - Details

• 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