How To Fix PPEBAL148 - Model mix &1 is already being processed by &2

SAP Error Message - Details

• Message type: E = Error

• Message class: PPEBAL - Line Balance Message

• Message number: 148

• Message text: Model mix &1 is already being processed by &2

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPEBAL148 - Model mix &1 is already being processed by &2 ?

  The SAP error message PPEBAL148 indicates that a specific model mix (identified by &1) is currently being processed by another user or session (identified by &2). This typically occurs in the context of production planning or process order management, where multiple users may attempt to access or modify the same model mix simultaneously.
  Cause:
  
  
  Concurrent Access: The primary cause of this error is that the model mix is locked by another user or process. This can happen if:
  
  Another user is currently processing the same model mix.
  A previous session did not release the lock due to an error or was terminated unexpectedly.
  A long-running process is still active on the model mix.
  
  
  
  System Configuration: Sometimes, system settings or configurations may lead to locks not being released properly.
  
  
  Solution:
  
  
  Wait and Retry: If the model mix is being processed by another user, the simplest solution is to wait until that user completes their task and releases the lock. You can then retry your operation.
  
  
  Check Active Sessions: Use transaction codes like SM12 (to check for locks) or SM21 (to check system logs) to identify if there are any active sessions that are holding the lock on the model mix. If you find a session that is no longer active or is stuck, you may need to contact your system administrator to release the lock.
  
  
  Communicate with Users: If you are in a collaborative environment, communicate with your colleagues to determine if someone is actively working on the model mix and coordinate your efforts.
  
  
  System Administration: If the issue persists and you suspect that locks are not being released properly, it may require intervention from a system administrator to investigate and resolve any underlying issues.
  
  
  Review Configuration: If this error occurs frequently, it may be worth reviewing the system configuration and user access settings to ensure that they are optimized for concurrent processing.
  
  
  Related Information:
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage locks.
  SM21: To check system logs for errors or warnings.
  SE11: To check the data dictionary for the model mix table.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  
  
  Documentation: Review SAP documentation related to production planning and model mix processing for best practices and guidelines.
  
  
  By following these steps, you should be able to address the PPEBAL148 error effectively.