How To Fix S_ISSUE040 - Different RFC connection

SAP Error Message - Details

• Message type: E = Error

• Message class: S_ISSUE - Issue Management

• Message number: 040

• Message text: Different RFC connection

What causes this issue?

The RFC connection of your <DS:TRAN.STWB_SET>Basic Message System
Settings</> (&V1&) does not match the original RFC connection (&V2&) of
the current message.

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?

To be able to display the message, you must change the RFC connection in
the <DS:TRAN.STWB_SET>Basic Message System Settings</>.

Procedure for System Administrators

If you are not authorized to do so, contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message S_ISSUE040 - Different RFC connection ?

  The SAP error message S_ISSUE040, which indicates a "Different RFC connection," typically arises when there is a mismatch in the Remote Function Call (RFC) connections being used in your SAP system. This can occur in various scenarios, such as when trying to execute a function module or when there are inconsistencies in the configuration of RFC destinations.
  Cause:
  
  Inconsistent RFC Configuration: The RFC destination being used may not match the expected configuration for the function being called.
  Network Issues: There may be network connectivity issues between the SAP systems involved in the RFC call.
  Authorization Issues: The user executing the RFC call may not have the necessary authorizations for the specified RFC destination.
  Different System Instances: The RFC connection may be pointing to a different SAP system or instance than intended.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 to check the configuration of the RFC destination.
  Ensure that the destination is correctly configured and points to the intended SAP system.
  
  
  
  Test the RFC Connection:
  
  In SM59, select the RFC destination and use the "Connection Test" option to verify that the connection is working properly.
  
  
  
  Review Authorization:
  
  Ensure that the user executing the RFC call has the necessary authorizations for the RFC destination. You can check this in transaction SU01 or PFCG.
  
  
  
  Check for Network Issues:
  
  Verify that there are no network issues preventing the connection between the systems. This may involve checking firewalls, network routes, and other connectivity aspects.
  
  
  
  Review Function Module:
  
  If the error occurs while calling a specific function module, ensure that the function module is designed to be called via RFC and that it is correctly implemented.
  
  
  
  Check for System Changes:
  
  If there have been recent changes to the system landscape (e.g., system upgrades, changes in RFC destinations), ensure that all configurations are updated accordingly.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SU01: User maintenance.
  PFCG: Role maintenance.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message. You can search for relevant notes in the SAP Support Portal.
  
  
  Documentation: Review SAP documentation for RFC connections and troubleshooting steps.
  
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis team or SAP support for further assistance.