How To Fix UKM019 - Table UMK_SCHEME could not be locked against write access

SAP Error Message - Details

• Message type: E = Error

• Message class: UKM - UKM Message Class

• Message number: 019

• Message text: Table UMK_SCHEME could not be locked against write access

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UKM019 - Table UMK_SCHEME could not be locked against write access ?

  The SAP error message UKM019, which states that the table UMK_SCHEME could not be locked against write access, typically occurs in the context of the SAP system's inability to obtain a lock on a database table that is required for a specific operation. This can happen for several reasons, and understanding the cause is essential for resolving the issue.
  Causes:
  
  Concurrent Access: Another user or process may be accessing the UMK_SCHEME table, preventing your transaction from obtaining a write lock.
  Long-Running Transactions: If a transaction is taking a long time to complete, it may hold the lock on the table longer than expected.
  Deadlocks: There may be a deadlock situation where two or more processes are waiting for each other to release locks.
  Database Configuration: Issues with the database configuration or settings may also lead to locking problems.
  System Performance: High system load or performance issues can lead to delays in lock acquisition.
  
  Solutions:
  
  
  Check for Active Sessions: Use transaction codes like SM12 (to view and manage locks) to check if there are any active sessions holding locks on the UMK_SCHEME table. If you find any unnecessary locks, you may need to terminate those sessions.
  
  
  Wait and Retry: If the lock is held by a legitimate process, you may need to wait for that process to complete and then retry your operation.
  
  
  Analyze Long-Running Transactions: Use transaction SM50 or SM66 to monitor active processes and identify any long-running transactions that may be causing the lock.
  
  
  Check for Deadlocks: If you suspect a deadlock, you can analyze the system logs or use transaction SM21 to check for deadlock situations and resolve them.
  
  
  Database Administration: If the issue persists, consult with your database administrator to check for any underlying database issues or configurations that may be affecting locking behavior.
  
  
  System Performance Tuning: If high system load is a recurring issue, consider performance tuning of the SAP system or the underlying database to improve overall responsiveness.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the UKM019 error for any specific patches or updates that may address known issues.
  Documentation: Review SAP documentation for the UKM (SAP Credit Management) module to understand the context in which this error may occur.
  Support: If the issue cannot be resolved internally, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to identify the cause of the UKM019 error and implement a suitable solution.