How To Fix MDG_CDS_GENERATE012 - CDS Generation for model &1 is locked by another User

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_CDS_GENERATE - Messages for CDS View Generation

• Message number: 012

• Message text: CDS Generation for model &1 is locked by another User

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_CDS_GENERATE012 - CDS Generation for model &1 is locked by another User ?

  The SAP error message MDG_CDS_GENERATE012 indicates that the Core Data Services (CDS) generation process for a specific model is currently locked by another user. This typically occurs in the context of SAP Master Data Governance (MDG) when multiple users attempt to generate or modify the same CDS views simultaneously.
  Cause:
  
  Concurrent Access: Another user is currently generating or modifying the CDS views for the specified model, which locks the process for other users.
  Long-Running Processes: A previous CDS generation process may not have completed successfully, leaving the model in a locked state.
  System Issues: There may be issues with the system that prevent the lock from being released properly.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user to complete their task. Once the lock is released, you can attempt to generate the CDS views again.
  Check Lock Status: Use transaction code SM12 to check for locks on the relevant database tables. You can identify the user who is holding the lock and determine if it is safe to proceed.
  Terminate Long-Running Processes: If you find that a process is stuck or taking too long, you may need to terminate it. This can be done through transaction SM50 (Process Overview) or SM66 (Global Process Overview).
  Contact the User: If you identify the user holding the lock, you can reach out to them to coordinate the CDS generation process.
  System Administration: If the issue persists, it may require intervention from a system administrator to clear the lock or investigate further.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM50/SM66: To monitor and manage running processes.
  
  
  CDS Views: Core Data Services are a key part of the SAP HANA database and are used to define semantic data models.
  MDG: Master Data Governance is a solution that helps organizations manage their master data effectively.
  Documentation: Refer to SAP Help Portal or SAP Notes for specific guidance on CDS generation and troubleshooting.
  
  If the problem continues after trying the above solutions, consider reaching out to SAP support for further assistance.