How To Fix /CPD/PFP_SC_MESSAGES661 - &1 invalid; provide a valid RFC connection

SAP Error Message - Details

• Message type: E = Error

• Message class: /CPD/PFP_SC_MESSAGES -

• Message number: 661

• Message text: &1 invalid; provide a valid RFC connection

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /CPD/PFP_SC_MESSAGES661 - &1 invalid; provide a valid RFC connection ?

  The SAP error message /CPD/PFP_SC_MESSAGES661 &1 invalid; provide a valid RFC connection typically indicates that there is an issue with the Remote Function Call (RFC) connection in your SAP system. This error can occur in various scenarios, such as when trying to execute a function module or when performing a data transfer between systems.
  Cause:
  
  Invalid RFC Destination: The specified RFC destination is either not defined or is incorrectly configured in the SAP system.
  Connection Issues: There may be network issues preventing the connection to the target system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Configuration: The target system may not be properly configured to accept RFC calls.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Look for the RFC destination that is being referenced in the error message.
  Ensure that the destination is defined and configured correctly (check the connection type, target host, and system number).
  
  
  
  Test the Connection:
  
  In SM59, select the RFC destination and click on the "Connection Test" button to verify if the connection is working.
  If the test fails, check the error message for more details and troubleshoot accordingly.
  
  
  
  Review Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to perform the required actions.
  You can check user roles and authorizations in transaction SU01.
  
  
  
  Network Configuration:
  
  Verify that there are no firewall or network issues preventing the connection to the target system.
  Ensure that the target system is up and running and can accept connections.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) for any related error messages that might provide additional context.
  
  
  
  Consult Documentation:
  
  If the issue persists, consult SAP documentation or support for further troubleshooting steps specific to your environment.
  
  
  
  Related Information:
  
  RFC Types: Understand the different types of RFC connections (e.g., T, M, and S) and ensure you are using the correct type for your scenario.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address known issues related to RFC connections.
  System Landscape: Be aware of the overall system landscape and any recent changes that might have affected connectivity (e.g., system upgrades, network changes).
  
  By following these steps, you should be able to identify and resolve the issue related to the RFC connection that is causing the error message.