How To Fix /SAPAPO/PP_OPTLOG120 - Optimization run &1 locked by user &2

/SAPAPO/PP_OPTLOG120 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PP_OPTLOG -

• Message number: 120

• Message text: Optimization run &1 locked by user &2

Self-Explanatory Message

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/SAPAPO/PP_OPTLOG120 - Details

• The SAP error message /SAPAPO/PP_OPTLOG120 indicates that an optimization run in the SAP Advanced Planning and Optimization (APO) module is currently locked by another user. This typically occurs when one user is executing an optimization run, and another user attempts to start a new optimization run for the same planning object or data set.
  
  Cause:
  
  Concurrent Execution: Another user is currently running an optimization job that locks the resources needed for the new job.
  Unfinished Job: A previous optimization run may not have completed properly, leaving the lock in place.
  System Configuration: The system may be configured to prevent multiple optimization runs on the same data set to ensure data integrity.
  
  
  Solution:
  
  Wait for Completion: If another user is running the optimization, wait for them to complete their job. You can check the status of the optimization run in the APO system.
  Identify the Locking User: Use transaction codes like SM12 (to view locks) or SM37 (to