How To Fix PPC1DM004 - Locking error reading the material data

SAP Error Message - Details

• Message type: E = Error

• Message class: PPC1DM - PP Backflush: Database Management and Communication

• Message number: 004

• Message text: Locking error reading the material data

What causes this issue?

The system must read the material master record for material &v1& in
plant &v2& to determine the name of the repetitive manufacturing
profile. A locking error occurred in this process.

System Response

The material master record cannot be read. The backflush in the ERP
System will be terminated as the repetitive manufacturing profile name
is missing.

How to fix this error?

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPC1DM004 - Locking error reading the material data ?

  The SAP error message PPC1DM004, which indicates a "Locking error reading the material data," typically occurs when there is an issue with accessing material data due to locking mechanisms in the SAP system. This can happen in various scenarios, such as when multiple users or processes are trying to access or modify the same material data simultaneously.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing or modifying the material data, leading to a lock on that data.
  Long-Running Transactions: A transaction that takes a long time to complete may hold a lock on the material data longer than expected.
  System Configuration: Incorrect configuration of locking mechanisms or settings in the SAP system.
  Database Issues: Problems with the underlying database that may affect locking behavior.
  
  Solutions:
  
  Wait and Retry: If the error is due to concurrent access, waiting for a short period and then retrying the operation may resolve the issue.
  Identify Locking Users: Use transaction code SM12 to check for active locks on the material data. You can identify which user or process is holding the lock and take appropriate action.
  Release Locks: If you find that a lock is held unnecessarily, you can release it (if you have the necessary permissions) using transaction SM12. Be cautious when doing this, as it may disrupt other users.
  Check for Long-Running Transactions: Investigate any long-running transactions that may be causing locks. You can use transaction SM66 to monitor active processes in the system.
  Review System Configuration: Ensure that the locking mechanisms and configurations in your SAP system are set up correctly. Consult with your SAP Basis team if necessary.
  Database Health Check: If the issue persists, consider performing a health check on the database to ensure there are no underlying issues affecting performance and locking.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM66: Monitor global work processes.
  SM21: Check system logs for any related errors or warnings.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for relevant notes.
  Documentation: Review SAP documentation related to material management and locking mechanisms for a deeper understanding of how locks are managed in the system.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP support team or consult SAP support for further assistance.