How To Fix M2039 - Table TMC1 locked; try again later

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 039

• Message text: Table TMC1 locked; try again later

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 M2039 - Table TMC1 locked; try again later ?

  The SAP error message M2039, which states "Table TMC1 locked; try again later," typically occurs when there is a contention for the TMC1 table, which is used for material master data and related transactions. This locking can happen due to various reasons, such as:
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access or modify the TMC1 table simultaneously, leading to a lock.
  Long-running Transactions: A transaction that is taking a long time to complete may hold a lock on the table, preventing others from accessing it.
  Background Jobs: Background jobs that are processing data related to the TMC1 table may also cause locks.
  Database Locking Mechanisms: The underlying database may have its own locking mechanisms that can lead to this error.
  
  Solutions:
  
  Wait and Retry: The simplest solution is to wait for a few moments and then try the operation again. The lock may be released once the other transaction completes.
  Identify Locking Sessions: Use transaction codes like SM12 (to view and manage locks) to identify which user or process is holding the lock on the TMC1 table. You can then decide whether to wait for that process to complete or, if necessary, terminate it (with caution).
  Check Background Jobs: Use transaction SM37 to check for any background jobs that might be running and holding locks on the TMC1 table. If you find any, you can either wait for them to finish or, if appropriate, cancel them.
  Optimize Transactions: If you frequently encounter this error, consider optimizing the transactions that access the TMC1 table to reduce the time they hold locks.
  Database Administration: If the issue persists, it may be worth consulting with your database administrator to check for any underlying database issues or configurations that could be causing excessive locking.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (lock entries), SM37 (job monitoring), and ST22 (dump analysis) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to the TMC1 table or locking mechanisms.
  Performance Monitoring: Regularly monitor system performance and locking behavior to proactively address potential issues.
  
  If the problem continues after trying these solutions, it may be beneficial to reach out to your SAP support team for further assistance.