How To Fix IW229 - System: PM notification & cannot be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 229

• Message text: System: PM notification & cannot be locked

What causes this issue?

You want to allocate the <GL:maintenance_notification>maintenance
notification</> to a <GL:maintenance_order>maintenance order</>.

System Response

The system tries to lock the PM notification but is unable to do so.

How to fix this error?

INCLUDE 'SYSTEMVERWALTER' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW229 - System: PM notification & cannot be locked ?

  The SAP error message IW229 indicates that a PM (Plant Maintenance) notification cannot be locked because it is currently being processed or accessed by another user or session. This can occur in various scenarios, such as when multiple users are trying to access or modify the same notification simultaneously.
  Cause:
  
  Concurrent Access: Another user or session is currently editing or viewing the PM notification.
  System Lock: The notification is locked due to a previous transaction that did not release the lock properly.
  Database Lock: There may be a database-level lock on the notification record.
  Long-running Transactions: A long-running transaction may be holding the lock longer than expected.
  
  Solution:
  
  Wait and Retry: If another user is accessing the notification, wait for them to finish and then try again.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can look for locks related to the specific notification number and see if you can identify the user or session holding the lock.
  Release Locks: If you find a lock that is no longer needed (e.g., a user has left the session), you can manually delete the lock entry in SM12. Be cautious with this approach, as it may disrupt another user's work.
  Transaction Monitoring: Use transaction code SM21 to check the system log for any errors or warnings that might indicate why the lock is persisting.
  System Performance: If locks are a frequent issue, consider reviewing system performance and transaction handling to ensure that long-running transactions are minimized.
  User Communication: If multiple users are working on the same notifications, establish a communication protocol to avoid concurrent access issues.
  
  Related Information:
  
  Transaction Codes:
  
  IW21: Create PM Notification
  IW22: Change PM Notification
  IW23: Display PM Notification
  SM12: Display and Delete Locks
  SM21: System Log
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to PM notifications and locking mechanisms.
  User Training: Ensure that users are trained on how to properly access and manage PM notifications to minimize locking issues.
  
  If the problem persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.