How To Fix UJCTRL_EXCEPTION148 - Failed to acquire lock when running controls for model &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UJCTRL_EXCEPTION - BPC: control exception message class

• Message number: 148

• Message text: Failed to acquire lock when running controls for model &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJCTRL_EXCEPTION148 - Failed to acquire lock when running controls for model &1 ?

  The SAP error message UJCTRL_EXCEPTION148 indicates that there was a failure to acquire a lock when running controls for a specific model. This error typically occurs in the context of SAP Business Planning and Consolidation (BPC) or SAP Analytics Cloud (SAC) when multiple users or processes are trying to access or modify the same data simultaneously.
  Cause:
  
  Concurrent Access: The most common cause of this error is that another user or process is currently accessing the model or data that you are trying to work with, leading to a lock being placed on that resource.
  Long-Running Processes: If a process is taking a long time to complete, it may hold a lock on the model, preventing other processes from acquiring the necessary lock.
  System Configuration: There may be configuration settings in the SAP system that affect how locks are managed, leading to conflicts.
  
  Solution:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a few moments and then retrying the operation may resolve the issue.
  Check Active Sessions: Use transaction codes like SM12 (for lock entries) to check if there are any active locks on the model. If you find locks that are no longer needed, you may be able to delete them (with caution).
  Review Long-Running Processes: Identify any long-running processes that may be holding locks and determine if they can be optimized or terminated.
  User Coordination: If multiple users are working on the same model, coordinate with your team to avoid simultaneous access to the same data.
  System Configuration Review: Consult with your SAP Basis or system administrator to review the locking mechanism and configuration settings to ensure they are optimal for your use case.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the official SAP documentation for BPC or SAC for best practices on managing locks and concurrent access.
  Support: If the issue persists, consider reaching out to SAP Support for further assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to diagnose and resolve the UJCTRL_EXCEPTION148 error effectively.