How To Fix UMK816 - The customer measure '&1' is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UMK - Measures

• Message number: 816

• Message text: The customer measure '&1' is locked by user &2

What causes this issue?

You are trying to assign a provider measure to the company measure &V1&
, or to remove this assignment while the company measure is used by the
user &V2&.

System Response

The process was canceled by the system.

How to fix this error?

Contact the user &V2&, or wait until the measure is no longer locked.

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 UMK816 - The customer measure '&1' is locked by user &2 ?

  The SAP error message UMK816 indicates that a specific customer measure (identified by &1) is currently locked by another user (identified by &2). This typically occurs in scenarios where multiple users are trying to access or modify the same data simultaneously, leading to a lock to prevent data inconsistencies.
  Cause:
  
  Concurrent Access: Another user is currently editing or processing the customer measure, which prevents other users from making changes until the lock is released.
  Long-Running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected.
  System Configuration: The locking mechanism in SAP is designed to ensure data integrity, and sometimes it may be overly restrictive based on the configuration.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user to finish their transaction. Once they release the lock, you should be able to access the customer measure.
  Identify the Locking User: If you have the necessary permissions, you can check which user is holding the lock. You can do this using transaction codes like SM12 (for lock entries) to see the list of locks and identify the user.
  Contact the User: If possible, contact the user who is holding the lock to see if they can complete their task or release the lock.
  Release the Lock: If the locking user is no longer active (e.g., they have logged off unexpectedly), a system administrator can manually release the lock using transaction SM12.
  Review System Configuration: If this issue occurs frequently, it may be worth reviewing the system's locking strategy and configuration to ensure it meets the needs of your organization.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related issues.
  ST22: To check for dumps that might indicate underlying issues.
  
  
  Documentation: Refer to SAP Help documentation for more details on locking mechanisms and best practices for managing concurrent access.
  User Training: Ensure that users are trained on how to properly manage their sessions and avoid leaving transactions open longer than necessary.
  
  By following these steps, you should be able to resolve the UMK816 error and understand the underlying causes of the locking issue.