How To Fix UKM045 - Mapping context &1 / &2 locked

SAP Error Message - Details

• Message type: E = Error

• Message class: UKM - UKM Message Class

• Message number: 045

• Message text: Mapping context &1 / &2 locked

What causes this issue?

An attempt was made to set a lock preventing writing to a mapping
context.

System Response

The write lock was rejected. Probably there was an attempt to create or
delete the mapping context at the same time.

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 UKM045 - Mapping context &1 / &2 locked ?

  The SAP error message UKM045, which states "Mapping context &1 / &2 locked," typically occurs in the context of the SAP Credit Management module. This error indicates that the mapping context (which is used for credit checks and risk assessments) is currently locked, preventing any changes or updates to it.
  Cause:
  
  Concurrent Access: The mapping context may be locked because another user or process is currently accessing or modifying it. This can happen in environments where multiple users are working on credit management tasks simultaneously.
  Long-Running Transactions: If a transaction that involves the mapping context is taking a long time to complete, it can lead to a lock being held for an extended period.
  System Errors: Occasionally, system errors or crashes can leave locks in place that need to be cleared.
  
  Solution:
  
  Wait and Retry: If the lock is due to another user or process, waiting for a short period and then retrying the operation may resolve the issue.
  Identify the Lock: Use transaction codes like SM12 (to view and manage locks) to identify which user or process is holding the lock. You can check the lock entries and see if you can contact the user or process to resolve the issue.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in SM12. However, this should be done with caution, as it may disrupt the work of other users.
  Check for Long-Running Transactions: Use transaction SM66 (to monitor global work processes) to identify any long-running transactions that may be causing the lock. If necessary, you can terminate these processes, but again, this should be done with caution.
  System Restart: In some cases, a system restart may be required to clear persistent locks, especially if they are caused by system errors.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM66 (global work processes), and SM21 (system log) for troubleshooting.
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks in the system.
  Documentation: Refer to SAP documentation or support notes related to the specific version of SAP you are using for more detailed troubleshooting steps and best practices.
  
  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.