How To Fix /SAPAPO/PDEM_GEN_SRV138 - Last run of the process chain has not finished yet

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PDEM_GEN_SRV -

• Message number: 138

• Message text: Last run of the process chain has not finished yet

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PDEM_GEN_SRV138 - Last run of the process chain has not finished yet ?

  The SAP error message /SAPAPO/PDEM_GEN_SRV138 indicates that a process chain in SAP Advanced Planning and Optimization (APO) has not yet completed its last run. This can occur for several reasons, and understanding the cause is essential for resolving the issue.
  Causes:
  
  Long-Running Process: The process chain may be taking longer than expected to complete due to large data volumes or complex calculations.
  Stuck Process: The process may have encountered an error or deadlock, causing it to hang.
  Resource Constraints: Insufficient system resources (CPU, memory, etc.) can lead to delays in process execution.
  Scheduling Conflicts: Another instance of the same process chain may be running concurrently, preventing the new run from starting.
  Database Locks: Locks on database tables required by the process chain can cause it to wait indefinitely.
  
  Solutions:
  
  
  Check Process Chain Status:
  
  Go to transaction code RSPC to monitor the status of the process chain. Look for any running or failed instances.
  If the process is still running, you may need to wait for it to complete.
  
  
  
  Terminate Stuck Processes:
  
  If the process appears to be stuck, you can terminate it. In RSPC, select the process and choose the option to cancel or terminate it.
  After termination, you can restart the process chain.
  
  
  
  Review Logs:
  
  Check the logs for the process chain to identify any errors or warnings that may indicate why it is not completing.
  Look for specific error messages that can provide more context.
  
  
  
  Resource Monitoring:
  
  Monitor system resources (CPU, memory, etc.) to ensure that the system is not overloaded.
  If necessary, optimize the system or schedule the process chain during off-peak hours.
  
  
  
  Check for Concurrent Runs:
  
  Ensure that no other instances of the same process chain are running. If they are, you may need to wait for them to complete or adjust the scheduling.
  
  
  
  Database Locks:
  
  Use transaction code SM12 to check for any locks on the database tables that the process chain uses. If you find locks that are no longer needed, you can release them.
  
  
  
  Re-run the Process Chain:
  
  After addressing any issues, you can re-run the process chain to see if it completes successfully.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSPC: Process Chain Maintenance
  SM12: Display and Delete Locks
  SM37: Job Monitoring
  
  
  Documentation: Refer to SAP Help documentation for more details on process chains and troubleshooting.
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to this error message.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the /SAPAPO/PDEM_GEN_SRV138 error message.