How To Fix NHCF_VALIDATION002 - Message cannot be processed because of locking problems

SAP Error Message - Details

• Message type: E = Error

• Message class: NHCF_VALIDATION - HCF messages

• Message number: 002

• Message text: Message cannot be processed because of locking problems

What causes this issue?

Locking problems in the idempotency framework.

System Response

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

How to fix this error?

Try again later.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NHCF_VALIDATION002 - Message cannot be processed because of locking problems ?

  The SAP error message NHCF_VALIDATION002 indicates that a message cannot be processed due to locking problems. This typically occurs in scenarios where multiple processes or users are trying to access or modify the same data simultaneously, leading to a conflict.
  Causes:
  
  
  Locking Conflicts: The most common cause is that the data or object you are trying to access is currently locked by another user or process. This can happen in various scenarios, such as:
  
  Another transaction is currently processing the same data.
  A previous transaction did not release the lock properly.
  Long-running transactions that hold locks for an extended period.
  
  
  
  Database Locking: The underlying database may have locks that prevent the processing of the message.
  
  
  Configuration Issues: Sometimes, configuration settings in SAP can lead to locking issues, especially if there are custom developments or modifications.
  
  
  Solutions:
  
  
  Wait and Retry: If the locking issue is temporary, waiting for a few moments and then retrying the operation may resolve the issue.
  
  
  Identify Locks: Use transaction codes like SM12 (for lock entries) to identify which user or process is holding the lock. You can then decide whether to wait for the lock to be released or take action to release it.
  
  
  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: Investigate if there are any long-running transactions that are holding locks. You can use transaction SM66 to monitor active processes in the system.
  
  
  Review Custom Code: If the issue is related to custom developments, review the code to ensure that locks are being handled properly and that they are released in a timely manner.
  
  
  System Configuration: Check the system configuration for any settings that might be contributing to locking issues. This may involve consulting with your SAP Basis team.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that might address this specific error message or provide guidance on handling locking issues.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM66: Global overview of active processes.
  SM21: System log for error messages and warnings.
  
  
  
  SAP Documentation: Refer to SAP Help Portal for detailed documentation on message processing and locking mechanisms.
  
  
  Performance Monitoring: Regularly monitor system performance and locking behavior to prevent future occurrences of this issue.
  
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.