How To Fix CM_MDG_CDS_ASSEMBLER007 - Model &1 locked by different user.

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_MDG_CDS_ASSEMBLER -

• Message number: 007

• Message text: Model &1 locked by different user.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_MDG_CDS_ASSEMBLER007 - Model &1 locked by different user. ?

  The SAP error message CM_MDG_CDS_ASSEMBLER007 indicates that a specific model (denoted by &1) is currently locked by a different user. This typically occurs in the context of Master Data Governance (MDG) when multiple users attempt to access or modify the same data model simultaneously.
  Cause:
  
  Concurrent Access: Another user is currently editing or has locked the model for changes, preventing other users from making modifications.
  Session Timeout: A previous session may not have released the lock due to a timeout or improper logout.
  System Error: Occasionally, system errors or crashes can leave locks in place that should have been released.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, waiting for the other user to finish their work may resolve the issue. You can periodically check if the lock has been released.
  Identify the Locking User: Use transaction codes like SM12 (to view and manage locks) to identify which user has locked the model. You can then communicate with that user to understand their needs.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock using transaction SM12. However, this should be done with caution, as it may disrupt the other user's work.
  Check for Stale Locks: If you suspect that the lock is stale (e.g., due to a session timeout), you can also check the system logs or consult with your SAP Basis team to clear any unnecessary locks.
  Review User Permissions: Ensure that users have the appropriate permissions and that there are no conflicts in user roles that might lead to locking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM21 (system log), and SU01 (user maintenance) for managing user sessions and locks.
  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 SAP MDG documentation for best practices on managing data models and understanding locking mechanisms.
  
  If the issue persists after trying the above solutions, it may be beneficial to escalate the matter to your SAP support team for further investigation.