How To Fix /STMC/CR_MSG752 - Error while starting content repository UOW; another UOW is already open

SAP Error Message - Details

• Message type: E = Error

• Message class: /STMC/CR_MSG -

• Message number: 752

• Message text: Error while starting content repository UOW; another UOW is already open

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /STMC/CR_MSG752 - Error while starting content repository UOW; another UOW is already open ?

  The SAP error message /STMC/CR_MSG752 indicates that there is an issue with starting a content repository Unit of Work (UOW) because another UOW is already open. This typically occurs in scenarios where multiple processes or transactions are trying to access the content repository simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: The most common cause is that another transaction or process is already accessing the content repository, and the system does not allow multiple UOWs to be open at the same time.
  Unfinished Transactions: If a previous transaction did not complete properly or was left open, it can block new UOWs from being initiated.
  System Locking: The system may have locking mechanisms in place that prevent new UOWs from starting until the current one is completed or released.
  
  Solution:
  
  Check Active UOWs: Investigate if there are any active UOWs that are still open. You can do this by checking the transaction logs or using transaction codes like SM12 (to check for locks) or SM21 (to check system logs).
  Complete or Rollback Transactions: If you find an unfinished transaction, try to complete it or roll it back if necessary. This may involve closing the application or process that is holding the UOW open.
  Restart the Application: Sometimes, simply restarting the application or the SAP GUI can help clear any temporary locks or issues.
  System Restart: If the issue persists and you have the necessary permissions, consider restarting the SAP system. This should be done with caution and typically during a maintenance window.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this can sometimes resolve underlying issues related to content repository handling.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for specific notes that might address this error.
  Documentation: Review the SAP documentation related to content repositories and UOW management for best practices and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found effective.
  
  If the problem continues after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.