How To Fix FDT_SERVICE191 - Could not lock application &2 due to user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_SERVICE - Formula & Derivation Tool: Services

• Message number: 191

• Message text: Could not lock application &2 due to user &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_SERVICE191 - Could not lock application &2 due to user &1 ?

  The SAP error message FDT_SERVICE191 indicates that a specific application (denoted by &2) could not be locked because it is currently being accessed or modified by another user (denoted by &1). This is a common issue in SAP systems where multiple users may attempt to access or modify the same object simultaneously.
  Cause:
  
  Concurrent Access: Another user is currently editing or has locked the application you are trying to access.
  Session Issues: Sometimes, a previous session may not have released the lock properly.
  System Configuration: Certain configurations in the SAP system may lead to locking issues, especially in environments with high user activity.
  
  Solution:
  
  Wait and Retry: If the application is being used by another user, the simplest solution is to wait until they finish their work and release the lock.
  Check Lock Entries: You can check the lock entries in the SAP system using transaction code SM12. This will allow you to see which user has locked the application and potentially release the lock if necessary.
  Contact the User: If you identify the user who has the lock, you can reach out to them to see if they can release it.
  Release Lock Manually: If you have the necessary authorizations, you can manually delete the lock entry in SM12. Be cautious with this approach, as it may lead to data inconsistency if the other user is actively working on the application.
  System Restart: In rare cases, if the lock persists and cannot be resolved, a system restart may be necessary, but this should be done with caution and typically as a last resort.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related issues.
  SU01: To check user details and authorizations.
  
  
  User Roles: Ensure that users have the appropriate roles and permissions to access the applications they need without causing locking issues.
  Performance Monitoring: Regularly monitor system performance and user activity to identify potential bottlenecks or frequent locking issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or technical support for further investigation.