How To Fix KA203 - System error during locking

KA203 - Overview

• Message type: E = Error

• Message class: KA - CO Overhead Costs: Overhead, Accrual Calculation

• Message number: 203

• Message text: System error during locking

What causes this issue?

A system error occurred during locking.

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KA203 - System error during locking ?

  The SAP error message KA203, which states "System error during locking," typically occurs in the context of the Controlling (CO) module when there is an issue with the locking mechanism that SAP uses to prevent data inconsistencies during transactions. This error can arise due to various reasons, including database issues, system configuration problems, or issues with the application server.
  Causes:
  
  Database Lock Issues: The database may have encountered a problem while trying to lock a record, which can happen if there are deadlocks or if the database is under heavy load.
  Application Server Problems: If the application server is experiencing issues, it may not be able to handle the locking requests properly.
  
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to locking problems.
  Network Issues: Network interruptions can cause communication problems between the application server and the database.
  Concurrent Access: Multiple users or processes trying to access the same data simultaneously can lead