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

PPC1DM507 - Overview

• 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.

PPC1DM507 - Details

• 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