How To Fix /IWBEP/CM_ST155 - During generation a lock failure occured

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_ST -

• Message number: 155

• Message text: During generation a lock failure occured

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_ST155 - During generation a lock failure occured ?

  The SAP error message /IWBEP/CM_ST155 indicates that a lock failure occurred during the generation of a service or a related object in the SAP Gateway framework. This error typically arises when multiple processes or users attempt to access or modify the same object simultaneously, leading to a conflict.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to generate or modify the same service or object at the same time.
  Long-Running Transactions: A long-running transaction may hold a lock on the object, preventing other processes from accessing it.
  System Performance Issues: High system load or performance issues can lead to delays in releasing locks.
  Configuration Issues: Incorrect configuration of the SAP Gateway or related components may lead to locking issues.
  
  Solutions:
  
  Retry the Operation: Often, simply retrying the operation after a short wait can resolve the issue if it was caused by temporary contention.
  Check for Active Sessions: Use transaction codes like SM12 to check for active locks. If you find locks that are no longer needed, you can delete them (ensure you have the necessary authorizations).
  Review Long-Running Transactions: Identify any long-running transactions that may be holding locks and address them. You can use transaction SM66 to monitor active processes.
  Increase Timeout Settings: If applicable, consider increasing the timeout settings for locks in your system configuration.
  System Performance Tuning: If the system is under heavy load, consider performance tuning to improve response times and reduce lock contention.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve underlying issues.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SM66: To monitor active processes in the system.
  SE80: To check the service and its dependencies.
  
  
  SAP Gateway: Understanding the SAP Gateway framework and its components can help in troubleshooting issues related to service generation.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.