How To Fix XMS_ADM644 - RFC connection via destination '&1' failed with error '&2': "&3&4".

SAP Error Message - Details

• Message type: E = Error

• Message class: XMS_ADM - XMS - Administration

• Message number: 644

• Message text: RFC connection via destination '&1' failed with error '&2': "&3&4".

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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Smart SAP Assistant

• What is the cause and solution for SAP error message XMS_ADM644 - RFC connection via destination '&1' failed with error '&2': "&3&4". ?

  The SAP error message XMS_ADM644 indicates that there is an issue with an RFC (Remote Function Call) connection. This error typically arises when the system is unable to establish a connection to a specified destination. The message format includes placeholders for the destination name (&1), the error code (&2), and additional error details (&3&4).
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems.
  Incorrect Configuration: The RFC destination may not be configured correctly in the SAP system (e.g., incorrect hostname, port, or system ID).
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Service Unavailability: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls may be blocking the connection between the systems.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to verify that