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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0133 - Error for Remote Function Call with port '&' ?

  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 and matches the configuration on the target system.
  
  
  
  Test Connection:
  
  Use the "Connection Test" feature in SM59 to check if the connection can be established successfully.
  If the test fails, note the error message for further troubleshooting.
  
  
  
  Network Configuration:
  
  Ensure that there are no network issues preventing communication between the SAP system and the target system.
  Check for any network outages or misconfigurations.
  
  
  
  Firewall Settings:
  
  Verify that the firewall settings on both the SAP system and the target system allow traffic through the specified port.
  If necessary, adjust the firewall rules to permit the required traffic.
  
  
  
  Service Status:
  
  Check if the service on the target system that listens on the specified port is running.
  Restart the service if it is not running.
  
  
  
  SAP Gateway Configuration:
  
  Ensure that the SAP Gateway is properly configured and running.
  Check the gateway logs for any errors that might indicate issues with the RFC communication.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: Monitor SAP Gateway
  SICF: Maintain HTTP Services (if applicable)
  
  
  
  Logs:
  
  Check the system logs (SM21) and developer traces (ST22) for any additional error messages that might provide more context.
  
  
  
  Documentation:
  
  Refer to SAP Notes and documentation related to RFC communication and troubleshooting for more detailed guidance.
  
  
  
  By following these steps, you should be able to identify and resolve the cause of the E0133 error in your SAP system.