How To Fix 03111 - Collision with separate locks

SAP Error Message - Details

• Message type: E = Error

• Message class: 03 -

• Message number: 111

• Message text: Collision with separate locks

What causes this issue?

You tried to edit a system object (especially a program source text or
data element) but you are already editing that object in another
session. You cannot change the object twice in this way.

System Response

The system does not allow you to edit the object.

How to fix this error?

Edit the object in your other session, or release the object in the
other session.
Special case: If your SAPGUI session has crashed but your session with
the R/3 server is not terminated, you can proceed as follows:
RESET N1
Try to transfer the session (Transaction SM04, find your old user
session and restart it using <LS>Edit -> Transfer session </>.
If this is not successful, exit the old session with <LS>Edit -> Delete
user</>.
Caution: Ensure that you exit the correct session on the correct R/3
server.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 03111 - Collision with separate locks ?

  The SAP error message "03111 Collision with separate locks" typically occurs when there is a conflict between different locks that are being held on the same object or resource in the SAP system. This can happen in various scenarios, such as when multiple users or processes are trying to access or modify the same data simultaneously.
  Cause:
  
  Concurrent Access: Multiple users or processes are trying to access the same data or object at the same time, leading to a lock conflict.
  Lock Management: The SAP system uses a locking mechanism to prevent data inconsistencies. If a user holds a lock on an object and another user tries to acquire a conflicting lock, this error may occur.
  Long-Running Transactions: If a transaction takes too long to complete, it may hold locks longer than necessary, causing other transactions to collide with it.
  Incorrect Locking Logic: In custom development or enhancements, improper handling of locks can lead to conflicts.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to view the active locks in the system. You can check which user or process is holding the lock that is causing the conflict.
  Release Locks: If you identify a lock that is no longer needed, you can manually release it from the SM12 transaction. However, be cautious when doing this, as it may lead to data inconsistencies if the transaction holding the lock is still in progress.
  Optimize Transactions: Review the transactions that are causing the lock conflicts. Optimize them to reduce the time they hold locks. This may involve breaking down long transactions into smaller ones or improving performance.
  Implement Proper Locking Logic: If the issue arises from custom development, ensure that the locking logic is implemented correctly to avoid unnecessary lock conflicts.
  Increase Lock Timeout: In some cases, increasing the lock timeout settings in the SAP system may help alleviate the issue, but this should be done with caution and proper analysis.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: Check system logs for any related errors or warnings.
  ST22: Analyze short dumps that may provide additional context for the error.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation on lock management and concurrency control for best practices.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.