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

HREIC321 - Overview

• 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.

Unfortunately, there isn't any extra information in this error notice.

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HREIC321 - Details

• 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