How To Fix HREIC321 - 'Transport Only' determines source and target clients for logon clients

SAP Error Message - Details

• Message type: E = Error

• Message class: HREIC - EIC Messages

• Message number: 321

• Message text: 'Transport Only' determines source and target clients for logon clients

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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 HREIC321 - 'Transport Only' determines source and target clients for logon clients ?

  The SAP error message HREIC321, which states "Transport Only" determines source and target clients for logon clients, typically occurs in the context of client transport operations within the SAP system. This error is related to the configuration of client transport settings and the way clients are defined in the system.
  Cause:
  
  
  Client Transport Configuration: The error usually arises when there is a mismatch or misconfiguration in the client transport settings. Specifically, it indicates that the system is trying to determine the source and target clients for a transport request, but the configuration is set to "Transport Only," which may not be appropriate for the operation being performed.
  
  
  Client Settings: The clients involved in the transport process may not be correctly defined or may not have the necessary authorizations or settings to perform the transport.
  
  
  Transport Layer Issues: There may be issues with the transport layer configuration, such as incorrect transport routes or missing transport directories.
  
  
  Solution:
  
  
  Check Client Settings: Verify the settings of the source and target clients involved in the transport. Ensure that they are correctly configured and that the necessary authorizations are in place.
  
  
  Review Transport Configuration: Go to the Transport Management System (TMS) and check the transport routes and layers. Ensure that the transport layer is correctly set up and that the source and target clients are properly defined.
  
  
  Adjust Transport Options: If the transport is intended to be more than just a "Transport Only" operation, consider adjusting the transport options to allow for the necessary operations.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve the issue.
  
  
  System Logs: Review the system logs (transaction SM21) for any additional error messages or warnings that may provide more context about the issue.
  
  
  Transport Request: If the error occurs during the import of a transport request, ensure that the transport request is correctly released and that there are no issues with the request itself.
  
  
  Related Information:
  
  SAP Transport Management System (TMS): Familiarize yourself with the TMS, as it is crucial for managing transports between different SAP systems and clients.
  Client Administration: Understanding client administration in SAP (transaction SCC4) can help in managing client settings and configurations.
  SAP Documentation: Refer to the official SAP documentation for detailed information on client transport processes and configurations.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or consult with an experienced SAP Basis administrator for further assistance.