How To Fix MPE_EXEC_CONF029 - In operation &1, OA &2 of the produce segment is already in process

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_EXEC_CONF - Messages for Shop Floor Order Confirmation

• Message number: 029

• Message text: In operation &1, OA &2 of the produce segment is already in process

What causes this issue?

You cannot perform the undo action as the successor operation activity
has already started.

System Response

The system will not perform the undo action.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_EXEC_CONF029 - In operation &1, OA &2 of the produce segment is already in process ?

  The SAP error message MPE_EXEC_CONF029 indicates that there is an issue with the operation in a production order where the operation (identified by &1) and the object assignment (OA &2) of the production segment is already in process. This typically occurs in the context of production planning and execution, particularly when dealing with manufacturing orders or production scheduling.
  Cause:
  
  Concurrent Processing: The most common cause of this error is that the operation you are trying to execute is already being processed by another transaction or user. This can happen if multiple users are trying to execute the same operation simultaneously.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If one user has locked the operation for processing, other users will receive this error when they attempt to access the same operation.
  Incorrect Status: The operation may not have been properly completed or released from its previous status, leading to it being marked as "in process."
  
  Solution:
  
  Check for Active Processes: Verify if the operation is indeed being processed by another user or transaction. You can do this by checking the transaction logs or using transaction codes like SM12 (to check for locks) or SM21 (to check system logs).
  Wait and Retry: If another user is processing the operation, you may need to wait until they complete their task before trying again.
  Release Locks: If you find that a lock is preventing access and it is no longer valid (e.g., the user has logged off), you may need to release the lock manually using transaction SM12.
  Check Operation Status: Ensure that the operation status is correct. If it is stuck in an incorrect status, you may need to reset or change the status of the operation.
  Consult with IT Support: If you are unable to resolve the issue, it may be necessary to consult with your SAP support team or IT department for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  CO02: Change Production Order
  CO03: Display Production Order
  SM12: Display and Delete Locks
  SM21: System Log
  
  
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address the issue.
  Documentation: Review SAP documentation on production order processing and error handling for more context on how to manage production operations effectively.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.