How To Fix P2535 - Completion confirmations already created, change of session not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: P2 - Messages for HR Time Management

• Message number: 535

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

What causes this issue?

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

System Response

It is not possible to change mode.

How to fix this error?

Save the order completion confirmations which you have already created.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message P2535 - Completion confirmations already created, change of session not possible ?

  The SAP error message P2535 ("Completion confirmations already created, 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 there are already completion confirmations recorded for a production order, and as a result, the system does not allow changes to the session or the order.
  Cause:
  
  Existing Confirmations: The primary cause of this error is that completion confirmations have already been entered for the production order. This means that the system has already recorded the output for the order, and any attempt to change the session or the order is restricted to maintain data integrity.
  Session Management: The error can also arise if there is an attempt to change the session in which confirmations are being processed while confirmations are still active or have been finalized.
  
  Solution:
  
  Review Confirmations: Check the production order to see the existing confirmations. You can do this by navigating to the production order in the SAP system and reviewing the confirmation history.
  Cancel or Adjust Confirmations: If necessary, you may need to cancel or adjust the existing confirmations. This can be done using transaction codes like CO13 (for canceling confirmations) or CO11N (for entering confirmations).
  Use a New Session: If you need to make changes, consider creating a new session or using a different transaction to handle the changes without affecting the existing confirmations.
  Consult Documentation: Refer to SAP documentation or help files for specific instructions on handling confirmations and production orders in your version of SAP.
  Contact Support: If the issue persists or if you are unsure about the steps to take, it may be beneficial to contact your SAP support team or consult with an SAP expert.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO11N (Enter Production Order Confirmation), CO13 (Cancel Confirmation), and COHV (Mass Processing of Production Orders).
  User Authorizations: Ensure that you have the necessary authorizations to make changes to production orders and confirmations.
  SAP Notes: Check for any SAP Notes related to this error message, as there may be specific patches or updates that address known issues.
  Training: Consider training sessions or resources on SAP PP module functionalities to better understand how confirmations and production orders work.
  
  By following these steps, you should be able to resolve the error and continue with your production order processing.