How To Fix UPO_MIG004 - Exclusive lock cannot be released for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: UPO_MIG - Message Class for PRA->UOM Migration

• Message number: 004

• Message text: Exclusive lock cannot be released for table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPO_MIG004 - Exclusive lock cannot be released for table &1 ?

  The SAP error message UPO_MIG004, which states "Exclusive lock cannot be released for table &1," typically occurs when there is an issue with database locks in the SAP system. This error can arise during various operations, such as data migration or updates, when the system attempts to release a lock on a database table but is unable to do so.
  Cause:
  
  Long-Running Transactions: If there are long-running transactions that hold locks on the specified table, the system may not be able to release the lock.
  Deadlocks: A deadlock situation may occur where two or more transactions are waiting for each other to release locks, preventing any of them from proceeding.
  System Errors: There may be underlying system errors or issues with the database that prevent locks from being released.
  Background Jobs: Background jobs or processes that are still running and holding locks on the table can also lead to this error.
  
  Solution:
  
  Identify Lock Holders: Use transaction code SM12 to check for existing locks on the table. Identify the user or process that is holding the lock.
  Terminate Long-Running Transactions: If you find any long-running transactions that are holding locks, consider terminating them if they are not critical.
  Check for Deadlocks: Use transaction code SM21 to check the system log for any deadlock situations. If deadlocks are found, you may need to analyze the transactions involved and resolve the deadlock.
  Release Locks Manually: If necessary, you can manually release locks using transaction code SM12, but be cautious as this can lead to data inconsistencies if not handled properly.
  Database Administration: If the issue persists, consult your database administrator to check for any underlying database issues or to perform maintenance tasks that may help resolve the locking issue.
  System Restart: In some cases, a system restart may be required to clear locks, but this should be done with caution and typically as a last resort.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM21: System log for monitoring.
  ST22: Dump analysis for checking for any ABAP runtime errors.
  
  
  SAP Notes: Check SAP Notes for any specific guidance or patches related to this error message.
  Performance Monitoring: Regularly monitor system performance and transaction behavior to prevent locking issues from occurring in the future.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.