How To Fix PLM_SE_PRS_MESSAGES037 - Exactly-once request cannot be locked: &1 (error code: &2).

SAP Error Message - Details

• Message type: E = Error

• Message class: PLM_SE_PRS_MESSAGES - Message class for PS services

• Message number: 037

• Message text: Exactly-once request cannot be locked: &1 (error code: &2).

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PLM_SE_PRS_MESSAGES037 - Exactly-once request cannot be locked: &1 (error code: &2). ?

  The SAP error message PLM_SE_PRS_MESSAGES037, which states "Exactly-once request cannot be locked: &1 (error code: &2)," typically occurs in the context of the SAP Process Integration (PI) or Process Orchestration (PO) when there is an issue with locking a request that is supposed to be processed exactly once. This error can arise due to various reasons, including concurrency issues, database locks, or configuration problems.
  Causes:
  
  Concurrency Issues: Multiple processes may be trying to access or modify the same request simultaneously, leading to a locking conflict.
  Database Locks: The request may be locked in the database due to a previous transaction that has not been completed or has failed.
  Configuration Issues: Incorrect configuration settings in the SAP system or in the integration scenario can lead to locking problems.
  System Performance: High load on the system can lead to delays in processing requests, causing timeouts and locking issues.
  
  Solutions:
  
  Check for Active Locks: Use transaction codes like SM12 to check for any active locks on the request. If you find locks that are no longer needed, you can release them.
  Review System Logs: Check the system logs (transaction SLG1) for any related error messages that might provide more context about the issue.
  Adjust Configuration: Review the configuration settings for the integration scenario to ensure that they are set up correctly for exactly-once processing.
  Increase System Resources: If the issue is related to system performance, consider increasing the resources allocated to the SAP system or optimizing the existing processes.
  Retry Mechanism: Implement a retry mechanism in your integration flow to handle transient locking issues gracefully.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide patches or updates.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for lock entries), SLG1 (for application logs), and ST22 (for dumps) to diagnose issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for Process Integration and Process Orchestration for best practices and troubleshooting tips.
  
  If the problem persists after trying the above solutions, it may be necessary to involve SAP support for further assistance.