How To Fix IKB120 - Error during locking of symptom

SAP Error Message - Details

• Message type: E = Error

• Message class: IKB - Knowledge base

• Message number: 120

• Message text: Error during locking of symptom

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IKB120 - Error during locking of symptom ?

  The SAP error message IKB120, which indicates "Error during locking of symptom," typically occurs in the context of the SAP Customer Relationship Management (CRM) or SAP Service Management (SM) modules. This error is related to the locking mechanism that SAP uses to prevent concurrent updates to the same data, ensuring data integrity.
  Causes:
  
  Concurrency Issues: The error often arises when multiple users or processes attempt to access or modify the same symptom or object simultaneously, leading to a locking conflict.
  Database Locking: The underlying database may have a lock on the record that is being accessed, preventing other transactions from proceeding.
  System Performance: If the system is under heavy load, it may not be able to handle locking requests efficiently, leading to timeouts or failures.
  Configuration Issues: Incorrect configuration in the CRM or SM module can also lead to locking issues.
  
  Solutions:
  
  Retry the Operation: Often, simply retrying the operation after a short wait can resolve the issue, especially if it was caused by a temporary lock.
  Check for Active Sessions: Use transaction codes like SM12 (to view and manage locks) to check if there are any active locks on the symptom. If you find unnecessary locks, you may need to release them.
  Review User Access: Ensure that users have the appropriate authorizations and that there are no conflicting processes trying to access the same data.
  System Performance Monitoring: Monitor system performance and database locks to identify any bottlenecks. You may need to optimize database performance or adjust system resources.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance, especially if it is affecting business operations.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view locks), SM21 (to check system logs), and ST22 (to analyze dumps) for troubleshooting.
  Documentation: Review SAP documentation related to CRM and SM modules for best practices on data locking and concurrency management.
  User Training: Ensure that users are trained on how to properly access and modify symptoms to minimize locking conflicts.
  
  By following these steps, you should be able to diagnose and resolve the IKB120 error effectively.