How To Fix ITOB005 - Internal error in calling lock management

SAP Error Message - Details

• Message type: E = Error

• Message class: ITOB - Messages for development class ITOB

• Message number: 005

• Message text: Internal error in calling lock management

What causes this issue?

An internal error has occurred in calling up the lock management
function.

System Response

The requested activity cannot be performed. The system cancels
processing.

How to fix this error?

Please notify your SAP system administrator of the entries that led to
this error.

Procedure for System Administrators

Ensure that the ENQUEUE service is available for your system.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ITOB005 - Internal error in calling lock management ?

  The SAP error message ITOB005, which states "Internal error in calling lock management," typically indicates an issue related to the lock management system within SAP. This error can occur in various scenarios, often when there are problems with database locks or when the system is unable to manage locks properly.
  Causes:
  
  Database Lock Issues: The error may arise due to problems with database locks, such as deadlocks or contention for resources.
  System Configuration: Incorrect configuration settings in the SAP system or database can lead to issues with lock management.
  Transport Issues: If you are working with transports, there may be issues with the transport layer that affect lock management.
  System Bugs: There may be bugs in the SAP kernel or specific modules that lead to this error.
  Concurrency Issues: High levels of concurrent access to the same data can lead to lock contention and trigger this error.
  
  Solutions:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries. If there are stale or unnecessary locks, you can delete them.
  Review System Logs: Check the system logs (transaction SM21) for any related errors or warnings that might provide more context about the issue.
  Restart the Application Server: Sometimes, restarting the application server can resolve temporary issues with lock management.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and support packages, as these may contain fixes for known issues.
  Database Performance: Monitor the performance of the database to ensure it is not overloaded. You may need to optimize queries or increase resources.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if you suspect a bug or require deeper analysis.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM21 (system log), and ST22 (dump analysis) for troubleshooting.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to lock management and database performance for best practices and configuration guidelines.
  
  By following these steps, you should be able to diagnose and potentially resolve the ITOB005 error in your SAP system.