How To Fix /IWBEP/CM_MGW_UM073 - Failure in acquiring the lock for user &1 with queue name &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_UM -

• Message number: 073

• Message text: Failure in acquiring the lock for user &1 with queue name &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_UM073 - Failure in acquiring the lock for user &1 with queue name &2 ?

  The SAP error message /IWBEP/CM_MGW_UM073 indicates a failure in acquiring a lock for a user with a specific queue name. This error typically occurs in the context of SAP Gateway and OData services, where locking mechanisms are used to manage concurrent access to resources.
  Cause:
  
  Lock Contention: The most common cause of this error is that another process or user is currently holding the lock for the specified queue. This can happen if multiple users or processes are trying to access the same resource simultaneously.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold the lock longer than expected, preventing other users from acquiring it.
  Deadlocks: In some cases, a deadlock situation may arise where two or more processes are waiting for each other to release locks.
  System Configuration: There may be configuration issues in the SAP Gateway or the underlying database that affect locking behavior.
  
  Solution:
  
  Identify the Lock Holder: Use transaction SM12 to check for existing locks. You can filter by the user ID or the queue name to find out which user or process is holding the lock.
  Release the Lock: If you identify a lock that is no longer needed, you can manually delete it from SM12. However, be cautious when doing this, as it may disrupt the process holding the lock.
  Optimize Transactions: Review the transactions that are causing the locks. If they are taking too long, consider optimizing the code or breaking them into smaller, more manageable units.
  Increase Lock Timeout: If appropriate, you can increase the lock timeout settings in the system configuration to allow longer wait times for acquiring locks.
  Monitor System Performance: Regularly monitor system performance and locking behavior to identify patterns that may lead to contention issues.
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or patches related to this error.
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  ST22: To analyze dumps that may provide more context on the error.
  
  
  SAP Gateway Logs: Review the SAP Gateway logs for any additional error messages or warnings that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.