How To Fix WB2B479 - The identifier is already used in an other session to create/change a TC

SAP Error Message - Details

• Message type: E = Error

• Message class: WB2B - Trading Contract

• Message number: 479

• Message text: The identifier is already used in an other session to create/change a TC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WB2B479 - The identifier is already used in an other session to create/change a TC ?

  The SAP error message WB2B479 indicates that the identifier you are trying to use for creating or changing a Transport Request (TC) is already in use in another session. This typically occurs when multiple users or sessions are trying to access or modify the same transport request simultaneously, leading to a conflict.
  Cause:
  
  Concurrent Access: Another user or session is currently using the same transport request identifier.
  Session Lock: The transport request may be locked due to an ongoing operation, such as a transport being released or modified.
  System Configuration: There may be system settings or configurations that restrict concurrent access to certain transport requests.
  
  Solution:
  
  
  Check Active Sessions: Verify if another session is currently using the transport request. You can do this by checking the transaction logs or using transaction codes like SM12 (to check for locks) or SM21 (to view system logs).
  
  
  Wait and Retry: If you find that another user is using the transport request, wait for them to complete their operation and then try again.
  
  
  Release Locks: If you believe the session is stuck or has not been properly closed, you may need to release the lock. This can be done using transaction SM12, where you can delete the lock entry if you have the necessary authorizations.
  
  
  Use a Different Identifier: If the transport request is not critical, consider using a different identifier for your operation.
  
  
  Consult with Basis Team: If the issue persists, it may be necessary to consult with your SAP Basis team. They can provide insights into system performance, session management, and any potential configuration issues.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors or warnings.
  SE09/SE10: To manage transport requests.
  
  
  
  Best Practices:
  
  Avoid working on the same transport request in multiple sessions.
  Communicate with team members about the transport requests being worked on to prevent conflicts.
  Regularly monitor and manage transport requests to ensure smooth operations.
  
  
  
  By following these steps, you should be able to resolve the WB2B479 error and continue with your transport request operations.