How To Fix TK070 - Cannot record changes in &1. Lock conflict.

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 070

• Message text: Cannot record changes in &1. Lock conflict.

What causes this issue?

Changes cannot be recorded in &V1&, since the objects are locked in
&V2&.

System Response

The function terminates.

How to fix this error?

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

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 TK070 - Cannot record changes in &1. Lock conflict. ?

  The SAP error message TK070, which states "Cannot record changes in &1. Lock conflict," typically occurs when a user or process attempts to make changes to a data object (like a table or a record) that is currently locked by another user or process. This locking mechanism is a part of SAP's concurrency control to ensure data integrity and prevent conflicts.
  Causes:
  
  Concurrent Access: Another user or transaction is currently editing or has locked the same data object.
  Long-running Transactions: A transaction that takes a long time to complete may hold locks longer than expected, causing conflicts for other users.
  Improper Lock Management: If a program or transaction does not release locks properly, it can lead to persistent lock conflicts.
  Background Jobs: Background jobs that are running and accessing the same data can also cause lock conflicts.
  
  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 then communicate with that user or check the process to see if it can be released.
  Release Locks: If you have the necessary authorizations, you can manually release the locks in SM12. However, be cautious when doing this, as it may lead to data inconsistency if the other user is still working on the data.
  Optimize Transactions: Review and optimize long-running transactions to ensure they complete quickly and release locks promptly.
  Check for Background Jobs: If background jobs are causing the locks, consider scheduling them during off-peak hours or optimizing their performance.
  Review Custom Code: If the error occurs in a custom program, review the code to ensure that locks are being managed correctly and released when no longer needed.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. SAP uses various types of locks (e.g., exclusive locks, shared locks) to manage data access.
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view locks), SM21 (to view system logs), and ST22 (to check for dumps) for better troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message TK070. SAP frequently updates its knowledge base with solutions for common problems.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.