How To Fix SDMSK_UI251 - Client enqueued by another user

SAP Error Message - Details

• Message type: E = Error

• Message class: SDMSK_UI - Data Masking: UI

• Message number: 251

• Message text: Client enqueued by another user

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDMSK_UI251 - Client enqueued by another user ?

  The SAP error message "SDMSK_UI251 Client enqueued by another user" typically occurs in the context of SAP's Document Management System (DMS) or when dealing with specific transactions that require exclusive access to a client or document. This error indicates that the client or document you are trying to access is currently locked or enqueued by another user, preventing you from making changes or accessing it.
  Cause:
  
  Document Locking: Another user is currently editing or has opened the document or client in a way that locks it for other users.
  Session Issues: Sometimes, a previous session may not have been closed properly, leaving the document or client in a locked state.
  System Configuration: Certain configurations in the SAP system may enforce strict locking mechanisms for document access.
  
  Solution:
  
  Wait and Retry: If another user is editing the document, you may need to wait until they finish and release the lock. You can try to contact the user to see if they can close their session.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can see which user has locked the document or client. If you have the necessary permissions, you can delete the lock entry, but this should be done with caution and ideally in coordination with the user who has the lock.
  Log Off and Log Back In: Sometimes, simply logging off and back into the SAP system can clear any session-related locks.
  Contact SAP Basis Team: If the issue persists, it may be necessary to involve your SAP Basis team to investigate further. They can check for any system-level issues or configurations that may be causing the locking behavior.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to view and manage lock entries) and SM21 (to check system logs for any related issues).
  User Communication: If you are in a collaborative environment, communicate with your colleagues to ensure that they are aware of the document or client being locked.
  Documentation: Review SAP documentation or help resources related to DMS and locking mechanisms for more detailed information on how locks are managed in your specific SAP environment.
  
  Always ensure that you have the appropriate permissions and follow your organization's protocols when dealing with locked entries in SAP.