How To Fix PK044 - Data blocked by another user

SAP Error Message - Details

• Message type: E = Error

• Message class: PK - Production - KANBAN

• Message number: 044

• Message text: Data blocked by another user

What causes this issue?

A lock requested by the application program for the data that you want
to process cannot be given as anther SAP transaction is already using
this lock.

System Response

You can not process the data as long as it is locked by another user.

How to fix this error?

Have a look in the lock table to see which user or which transaction
has the requested lock (Tools -> Administration ==> Monitoring -> Lock
entries). If necessary, get in touch with this user.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PK044 - Data blocked by another user ?

  The SAP error message PK044, which states "Data blocked by another user," typically occurs in the context of the Production Planning (PP) module when a user attempts to access or modify data that is currently locked by another user. This can happen in various scenarios, such as when trying to change a production order, a planned order, or any other object that requires exclusive access.
  Cause:
  
  Concurrent Access: Another user is currently editing or processing the same data object (e.g., production order, planned order).
  Transaction Locking: SAP uses locking mechanisms to prevent data inconsistencies. If a user is in the middle of a transaction that locks the data, other users will be unable to access it until the lock is released.
  Long-running Transactions: If a user has a long-running transaction, it may hold the lock for an extended period, causing other users to encounter this error.
  System Issues: Occasionally, system issues or bugs can lead to locks not being released properly.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for a few moments and then try to access the data again. The lock will be released once the other user completes their transaction.
  Identify the Lock: Use transaction code SM12 to check for locks. You can see which user is holding the lock and what object is locked. If necessary, you can contact the user to ask them to release the lock.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in transaction SM12. However, this should be done with caution, as it may lead to data inconsistencies if the other user is still working on the data.
  Check for Long-running Transactions: If you notice that a particular user is consistently causing locks, it may be worth investigating their transactions to see if they can be optimized or if they need assistance.
  System Monitoring: Regularly monitor the system for locking issues and address any underlying performance problems that may lead to long transaction times.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: Check system logs for any related issues.
  SM37: Monitor background jobs that may be causing locks.
  
  
  User Communication: If you are in a team environment, communicate with your colleagues to ensure that everyone is aware of their actions that may lead to locks.
  SAP Notes: Check SAP Notes for any known issues or patches related to locking behavior in your specific version of SAP.
  
  By following these steps, you should be able to resolve the PK044 error and minimize its occurrence in the future.