How To Fix MH344 - Not all data records to be changed (table &) could be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: MH - Maintain Material Master Data (Retail)

• Message number: 344

• Message text: Not all data records to be changed (table &) could be locked

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 MH344 - Not all data records to be changed (table &) could be locked ?

  The SAP error message MH344 indicates that not all data records in a specified table could be locked during a transaction. This typically occurs when there are issues with data consistency or when other processes are accessing the same records, preventing the current transaction from obtaining the necessary locks.
  Causes:
  
  Concurrent Access: Another user or process is currently accessing or locking the same records in the database table.
  Lock Table Overflow: The lock table may be full, preventing new locks from being acquired.
  Database Issues: There may be underlying database issues, such as deadlocks or other locking mechanisms that are preventing access.
  Authorization Issues: The user may not have the necessary authorizations to lock the records in the specified table.
  Long-running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, causing other transactions to fail.
  
  Solutions:
  
  
  Check for Concurrent Users: Use transaction codes like SM12 (to view and manage locks)