How To Fix DGA121 - Data records are locked for processing

SAP Error Message - Details

• Message type: E = Error

• Message class: DGA - DG: Messages for Dangerous Goods Management (A)

• Message number: 121

• Message text: Data records are locked for processing

What causes this issue?

You cannot process the selected data records because

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

The data records are locked by another user
The relevant dangerous goods data record has a deletion indicator (data
record processing in the packing requirement)

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DGA121 - Data records are locked for processing ?

  The SAP error message DGA121, which states "Data records are locked for processing," typically occurs when a user or a process is trying to access or modify data that is currently locked by another user or process. This locking mechanism is a part of SAP's data integrity and concurrency control to prevent data inconsistencies.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing the same data records.
  Long-running Transactions: A transaction that takes a long time to complete may hold locks longer than expected.
  Uncommitted Transactions: If a transaction is not committed or rolled back, it can leave data records locked.
  System Errors: Sometimes, system errors or crashes can leave records in a locked state.
  Background Jobs: Background jobs that are processing data can also lock records.
  
  Solutions:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the operation may resolve the issue.
  Identify the Lock: Use transaction codes like SM12 (Display and Delete Locks) to identify which user or process is holding the lock. You can check the lock entries and see if you can contact the user or process to release the lock.
  Release Locks: If you have the necessary authorizations, you can manually delete the lock entries in SM12. However, be cautious with this approach, as it may lead to data inconsistencies if the other process is still running.
  Check for Long-running Transactions: Use transaction SM66 (Global Work Process Overview) to monitor active processes and identify any long-running transactions that may be causing the lock.
  Review Background Jobs: Check if any background jobs are running that might be locking the records. You can use transaction SM37 to monitor background jobs.
  System Restart: In extreme cases, if the locks are due to a system error, a system restart may be necessary, but this should be done with caution and typically as a last resort.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. SAP uses different types of locks (e.g., exclusive locks, shared locks) to manage data access.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12, SM66, and SM37 for monitoring locks and processes.
  User Communication: If you identify a user holding a lock, communicate with them to understand if they can release the lock or if they are still working on the data.
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or technical support for further assistance.