How To Fix KM223 - An allocation has been locked by user &1

SAP Error Message - Details

• Message type: E = Error

• Message class: KM - Error messages for Profit Center Accounting

• Message number: 223

• Message text: An allocation has been locked by user &1

What causes this issue?

The program for adding a controlling area to the allocation cycles can
only be started if no users have locked an allocation. User &V1& is
currently creating or changing an alocation.

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?

Inform the user and ask him or her to leave the transaction.

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 KM223 - An allocation has been locked by user &1 ?

  The SAP error message KM223 indicates that an allocation (such as a cost allocation or a resource allocation) is locked by a specific user, which prevents other users from making changes to that allocation until the lock is released. This can occur in various SAP modules, particularly in Controlling (CO) or Project System (PS).
  Cause:
  
  User Lock: The allocation is currently being processed or edited by another user, which creates a lock on the allocation.
  Transaction Incomplete: A transaction that involves the allocation may not have been completed properly, leaving it in a locked state.
  System Error: Occasionally, system errors or crashes can lead to locks that are not released properly.
  
  Solution:
  
  Wait for Release: If the allocation is locked by another user, you may need to wait until that user completes their transaction and the lock is released.
  Identify the Locking User: You can use transaction code SM12 to view and manage locks. This will allow you to see which user has locked the allocation.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock from transaction SM12. However, this should be done with caution, as it may disrupt the other user's work.
  Check for Incomplete Transactions: Ensure that there are no incomplete transactions that might be causing the lock. If you find any, complete or cancel them as necessary.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to your SAP support team or SAP directly for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to check for dumps).
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks in the system.
  Documentation: Refer to SAP documentation or help resources for more detailed information on handling locks and allocations in your specific SAP environment.
  
  By following these steps, you should be able to address the KM223 error and understand its implications in your SAP system.