How To Fix E0133 - Error for Remote Function Call with port '&'

E0133 - Overview

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 133

• Message text: Error for Remote Function Call with port '&'

What causes this issue?

Port name: &v1&
Name of logical destination: &v2&
Error message from RFC_REMOTE_EXEC-Ruf:
&v3&&v4&

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

E0133 - Details

• The SAP error message E0133 indicates an issue with Remote Function Call (RFC) communication, specifically related to the port configuration. This error typically arises when there is a problem with the connection between the SAP system and the external system or when the specified port is not available or incorrectly configured.
  
  Cause:
  
  Incorrect Port Configuration: The specified port in the RFC destination may be incorrect or not open.
  Network Issues: There may be network connectivity issues between the SAP system and the target system.
  Firewall Restrictions: A firewall may be blocking the specified port, preventing communication.
  Service Not Running: The service on the target system that listens on the specified port may not be running.
  SAP Gateway Issues: Problems with the SAP Gateway configuration can also lead to this error.
  
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify the RFC destination settings, including the target host and port number.
  Ensure that the port number is correct