How To Fix KQ195 - Error while locking table &1. Internal error code: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: KQ - Error Messages for Customizing Product Costing

• Message number: 195

• Message text: Error while locking table &1. Internal error code: &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KQ195 - Error while locking table &1. Internal error code: &2 ?

  The SAP error message KQ195, which states "Error while locking table &1. Internal error code: &2," typically indicates that there is an issue with the system's ability to lock a specific database table. This can occur in various scenarios, such as during data processing, updates, or when multiple users are trying to access the same resource simultaneously.
  Causes:
  
  Database Lock Conflicts: Another transaction may already have a lock on the table, preventing your transaction from acquiring the necessary lock.
  Deadlocks: Two or more transactions may be waiting for each other to release locks, leading to a deadlock situation.
  Database Issues: There may be underlying issues with the database itself, such as corruption or misconfiguration.
  System Performance: High system load or performance issues can lead to timeouts or failures in acquiring locks.
  Authorization Issues: The user may not have the necessary permissions to lock the table.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If you find locks that are no longer needed, you can delete them (if you have the necessary authorizations).
  Review Transaction Logs: Check the transaction logs to identify if there are any long-running transactions that might be holding locks.
  Increase Timeout Settings: If the issue is related to timeouts, consider increasing the timeout settings for database connections.
  Database Health Check: Perform a health check on the database to ensure there are no underlying issues. This may involve running consistency checks or consulting with your database administrator.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the operation that is causing the error.
  System Performance Monitoring: Monitor system performance to identify any bottlenecks or resource constraints that may be affecting lock acquisition.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM21 (system log), and ST22 (dump analysis) for troubleshooting.
  Database Documentation: Refer to your database documentation for specific locking mechanisms and configurations that may affect SAP operations.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support or your internal IT team for further investigation.