How To Fix S1023 - Table MONI is locked by user &

SAP Error Message - Details

• Message type: E = Error

• Message class: S1 - Statistik / SAP-Monitor

• Message number: 023

• Message text: Table MONI is locked by user &

What causes this issue?

Table MONI is currently locked by another user/transaction.

System Response

As a result, no changes can be made to the performance database MONI by
the current transaction.

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.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message S1023 - Table MONI is locked by user & ?

  The SAP error message S1023 indicates that a specific database table, in this case, the MONI table, is locked by a user. This can happen for various reasons, typically when a user is performing a transaction that involves the table, or if a previous transaction did not release the lock properly.
  Cause:
  
  Active Transactions: A user is currently executing a transaction that is accessing the MONI table, which prevents other users from accessing it.
  Uncommitted Changes: A transaction may have been started but not committed or rolled back, leaving the table in a locked state.
  Long-Running Processes: Background jobs or long-running processes may be holding locks on the table.
  System Errors: Sometimes, system errors or crashes can leave locks in place.
  
  Solution:
  
  
  Identify the Lock:
  
  Use transaction code SM12 to view the list of locks in the system. You can filter by the table name (MONI) or by the user who is holding the lock.
  Check the user ID that is holding the lock and the transaction they are executing.
  
  
  
  Release the Lock:
  
  If the lock is held by a user who is no longer active or if the transaction is stuck, you can manually delete the lock entry from SM12. However, this should be done with caution, as it may lead to data inconsistency if the user is still performing operations.
  If possible, contact the user holding the lock and ask them to complete or cancel their transaction.
  
  
  
  Check for Background Jobs:
  
  Use transaction code SM37 to check for any background jobs that might be running and holding locks on the MONI table. If you find any, you may need to wait for them to complete or terminate them if they are stuck.
  
  
  
  System Monitoring:
  
  Regularly monitor the system for long-running transactions and locks to prevent future occurrences. Implementing proper transaction management and user training can help reduce the frequency of such locks.
  
  
  
  Consult Basis Team:
  
  If the issue persists or if you are unsure about releasing locks, consult your SAP Basis team for assistance. They can provide insights into the system's performance and help resolve locking issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM37: Monitor background jobs.
  SM21: Check system logs for errors that might indicate why locks are not being released.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on locking mechanisms and best practices for managing database locks.
  
  
  Preventive Measures: Consider implementing transaction timeout settings or user training to minimize the occurrence of locks in the future.
  
  
  Always ensure that any actions taken to resolve locking issues are in line with your organization's policies and procedures to avoid data integrity issues.