How To Fix B1018 - Port & is not an RFC port, or RFC destination is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 018

• Message text: Port & is not an RFC port, or RFC destination is missing

What causes this issue?

Port &v1& cannot be used for the Remote Function Call (RFC). Either the
port type is incorrect or you have not entered a logical RFC
destination.

How to fix this error?

Maintain another port in the partner profile or change the
configurations of the current port.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1018 - Port & is not an RFC port, or RFC destination is missing ?

  The SAP error message B1018 indicates that there is an issue with the Remote Function Call (RFC) configuration in your SAP system. Specifically, it suggests that the specified port is not recognized as an RFC port, or that the RFC destination is missing. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Incorrect RFC Destination: The RFC destination you are trying to use may not be defined in the SAP system.
  Misconfigured RFC Port: The port specified in the configuration may not be set up correctly or may not be an RFC port.
  Network Issues: There could be network connectivity issues preventing the SAP system from reaching the specified RFC destination.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solutions:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 (RFC Destinations).
  Verify that the RFC destination you are trying to use is correctly defined and active.
  Test the connection using the "Test Connection" button to ensure it is reachable.
  
  
  
  Verify Port Configuration:
  
  Ensure that the port specified in the RFC destination is indeed an RFC port.
  Check the configuration in transaction SMGW (Gateway Monitor) to see if the port is active.
  
  
  
  Network Connectivity:
  
  Ensure that there are no firewall or network issues preventing access to the RFC destination.
  Use tools like ping or telnet to check connectivity to the target system.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to execute the required functions.
  
  
  
  SAP Gateway Service:
  
  Check if the SAP Gateway service is running. You can do this in transaction SMGW.
  If it is not running, start the service and check the configuration.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) for any additional error messages that might provide more context about the issue.
  
  
  
  Related Information:
  
  RFC Destinations: These are configurations that define how to connect to other SAP systems or external systems using RFC.
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SMGW: Monitor the SAP Gateway.
  SM21: View system logs.
  
  
  Documentation: Refer to SAP Help documentation for detailed information on configuring RFC destinations and troubleshooting RFC issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the B1018 error message in your SAP system.