How To Fix S_AUT028 - Table &1 locked by user &2 (No transaction references maintainable)

SAP Error Message - Details

• Message type: E = Error

• Message class: S_AUT - Audit Trail (ILM): Messages

• Message number: 028

• Message text: Table &1 locked by user &2 (No transaction references maintainable)

What causes this issue?

You are currently not able to make any assignments of tables or change
dpcument objects to transactions in transaction S_AUT01. Another user (
&V2&) is using the table at the moment.

System Response

The table is locked by the system.

How to fix this error?

Try to invoke the transaction again later.

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 S_AUT028 - Table &1 locked by user &2 (No transaction references maintainable) ?

  The SAP error message S_AUT028 indicates that a specific table (denoted by &1) is locked by a user (denoted by &2), and as a result, no transaction references can be maintained. This typically occurs when a user is currently accessing or modifying the table, preventing other users from making changes.
  Cause:
  
  User Lock: The table is locked by a user who is currently working on it. This can happen if a user has opened a transaction that accesses the table and has not yet completed or saved their changes.
  Long-running Transactions: If a transaction takes a long time to complete, it can hold the lock for an extended period, causing other users to encounter this error.
  Uncommitted Changes: If a user has made changes to the table but has not yet committed those changes, the lock will remain in place.
  System Issues: Occasionally, system issues or bugs can lead to locks not being released properly.
  
  Solution:
  
  Identify the Lock: Use transaction code SM12 to view the list of locks in the system. You can filter by the table name and the user to identify who is holding the lock.
  Contact the User: If you identify the user who is holding the lock, reach out to them to see if they can complete their transaction or release the lock.
  Release the Lock: If the user is unavailable or the transaction is stuck, an administrator can manually release the lock using transaction SM12. However, this should be done with caution, as it may lead to data inconsistencies if the user was in the middle of a critical operation.
  Check for Long-running Transactions: If the lock is due to a long-running transaction, consider optimizing the transaction or reviewing the process to ensure it completes in a timely manner.
  Review System Performance: If locks are a frequent issue, it may be worth reviewing system performance and user training to minimize the occurrence of long locks.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: Check system logs for any related issues.
  ST22: Analyze dumps that may indicate underlying problems.
  
  
  Best Practices:
  
  Encourage users to save and commit their changes promptly.
  Monitor and optimize long-running transactions to reduce the likelihood of locks.
  Regularly review and clean up any unnecessary locks in the system.
  
  
  
  By following these steps, you should be able to resolve the S_AUT028 error and minimize its occurrence in the future.