How To Fix PPC1DM507 - Backflush currently locked by user &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 507

• Message text: Backflush currently locked by user &1

What causes this issue?

User &V1& is currently carrying out a component calculation for
costing. During this process, no backflushes can be posted. Despite
several attempts, the lock remained.

System Response

The system cannot accept the new backflush at the moment and rejects
it.

How to fix this error?

Try to carry out the backflush again later. If the error persists,
contact your system administrator.

Procedure for System Administrators

If the lock is not released, check the entries in the lock management.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPC1DM507 - Backflush currently locked by user &1 ?

  The SAP error message PPC1DM507 "Backflush currently locked by user &1" typically occurs when a user attempts to perform a backflush operation in the Production Planning (PP) module while another user has locked the same operation. This locking mechanism is in place to prevent data inconsistencies and ensure that only one user can modify the data at a time.
  Cause:
  
  User Lock: Another user is currently processing a backflush for the same production order or material.
  Session Timeout: A previous session may not have released the lock due to a timeout or an unexpected termination.
  System Configuration: The system may be configured to lock certain operations for specific reasons, such as batch processing or data integrity.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, wait for the other user to complete their operation and then try again.
  Identify the Locking User: Check who is currently holding the lock. You can use transaction codes like SM12 (to view and manage locks) to identify the user and the locked object.
  Contact the User: If possible, contact the user who is holding the lock to see if they can release it or if they are done with their operation.
  Release the Lock: If the locking user is no longer active (e.g., they have logged out or their session has crashed), an administrator can manually release the lock using transaction SM12.
  Check for Background Jobs: Sometimes, background jobs may hold locks. Check if any background jobs are running that might be causing the lock.
  Review System Configuration: If this issue occurs frequently, review the system configuration and locking mechanisms to ensure they are set up appropriately for your business processes.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  SM37: To monitor background jobs that might be causing locks.
  
  
  Documentation: Refer to SAP Help documentation for more details on backflush processes and locking mechanisms in the PP module.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.