How To Fix VLBAPI006 - Cross-system lock still exists despite the error

SAP Error Message - Details

• Message type: E = Error

• Message class: VLBAPI - Output Texts for Delivery BAPIs

• Message number: 006

• Message text: Cross-system lock still exists despite the error

What causes this issue?

Collected delivery blocks could not be removed jointly, since at least
one lock request could not be guaranteed.
The system therefore tried to reset all previously ensured locks. This
failed for at least one delivery that was distributed to a
decentralized WMS.

System Response

For at least one distributed delivery, the system could not remove the
cross-system lock, and it therefore still exists. The delivery can be
released automatically at the end of the LUW (logical unit of work).

How to fix this error?

The inconsistency is automatically removed when you exit the
transaction.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VLBAPI006 - Cross-system lock still exists despite the error ?

  The SAP error message VLBAPI006 indicates that a cross-system lock still exists despite an error occurring in the process. This typically happens in scenarios involving inter-system communication, such as when using the SAP Advanced Business Application Programming (ABAP) or when dealing with distributed systems.
  Cause:
  The error can occur due to several reasons, including:
  
  Incomplete Transaction: A transaction that was supposed to release a lock did not complete successfully, leaving the lock in place.
  Network Issues: Communication problems between systems can prevent the proper release of locks.
  System Crashes: If one of the systems involved crashes or is restarted unexpectedly, it may not release the locks it held.
  Long-running Processes: If a process takes too long to complete, it may hold onto locks longer than expected, leading to conflicts.
  Configuration Issues: Incorrect configuration of the systems involved in the cross-system communication can lead to locking issues.
  
  Solution:
  To resolve the VLBAPI006 error, you can take the following steps:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. Identify the locks that are causing the issue and determine if they can be released.
  Release Locks Manually: If you find locks that are no longer needed, you can manually delete them in transaction SM12. Be cautious when doing this, as it may affect other users or processes.
  Review Logs: Check the application logs (transaction SLG1) for any related error messages that might provide more context about the issue.
  Restart Processes: If a specific process is causing the lock, consider restarting it after ensuring that it is safe to do so.
  Check Network Connectivity: Ensure that there are no network issues between the systems involved. This may involve checking firewalls, network configurations, and connectivity.
  System Monitoring: Implement monitoring for long-running processes and locks to proactively manage and resolve issues before they escalate.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for lock entries), SM21 (system log), and SLG1 (application log) for troubleshooting.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it involves complex configurations or custom developments.
  Documentation: Review SAP documentation related to cross-system communication and locking mechanisms to better understand how to manage locks effectively.
  
  By following these steps, you should be able to diagnose and resolve the VLBAPI006 error effectively.