How To Fix TR773 - Target system &1 of change request &2 unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 773

• Message text: Target system &1 of change request &2 unknown

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message TR773 - Target system &1 of change request &2 unknown ?

  The SAP error message TR773 indicates that the target system specified for a change request is unknown or not recognized by the system. This typically occurs in the context of transport management, where changes made in one system (like a development system) need to be transported to another system (like a quality assurance or production system).
  Cause:
  
  Incorrect Target System Configuration: The target system may not be correctly defined in the Transport Management System (TMS).
  Transport Route Issues: There may be issues with the transport route configuration, such as missing or incorrect entries.
  Transport Layer Problems: The transport layer associated with the change request may not be properly set up or may not include the target system.
  System Name Mismatch: The name of the target system in the transport request may not match the actual system name in the TMS configuration.
  Transport Request Deletion: The transport request may have been deleted or is no longer valid.
  
  Solution:
  
  
  Check TMS Configuration:
  
  Go to the Transport Management System (TMS) configuration (transaction code STMS).
  Verify that the target system is correctly defined and is part of the transport domain.
  Ensure that the transport routes are correctly set up and that the target system is included in the routes.
  
  
  
  Verify Transport Layer:
  
  Check the transport layer associated with the change request (transaction code SE03).
  Ensure that the transport layer includes the target system.
  
  
  
  Check System Names:
  
  Ensure that the system name used in the transport request matches the actual system name configured in TMS.
  You can check the system name in the TMS configuration or by using transaction SCC4.
  
  
  
  Recreate Transport Request:
  
  If the transport request is invalid or has been deleted, you may need to recreate it and ensure that it is correctly configured.
  
  
  
  Consult Transport Logs:
  
  Review the transport logs for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Contact Basis Team:
  
  If you are unable to resolve the issue, it may be necessary to contact your SAP Basis team for further assistance, as they will have the necessary access and expertise to troubleshoot TMS issues.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  STMS: Transport Management System
  SE03: Transport Organizer Tools
  SCC4: Client Administration
  
  
  Documentation: Refer to SAP Help documentation for Transport Management for detailed guidance on configuring and managing transport routes and layers.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to transport management and error TR773.
  
  By following these steps, you should be able to identify and resolve the cause of the TR773 error message in your SAP system.