How To Fix ISLM_DI_GEN257 - The RFC destination connection type is not G.

SAP Error Message - Details

• Message type: E = Error

• Message class: ISLM_DI_GEN - DI Messages

• Message number: 257

• Message text: The RFC destination connection type is not G.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ISLM_DI_GEN257 - The RFC destination connection type is not G. ?

  The SAP error message ISLM_DI_GEN257 indicates that there is an issue with the RFC (Remote Function Call) destination configuration. Specifically, the error states that the connection type for the RFC destination is not set to "G" (which stands for "Group"). This can occur in scenarios where a connection to a remote system is required, but the configuration is not set up correctly.
  Cause:
  
  
  Incorrect RFC Destination Configuration: The RFC destination may be configured with a connection type other than "G". The connection types in SAP include:
  
  T: TCP/IP connection
  G: Group connection
  H: HTTP connection
  3: Connection to a non-SAP system
  D: Directory connection
  
  
  
  Missing or Incorrect Parameters: The RFC destination may be missing required parameters or may have incorrect settings that prevent it from functioning properly.
  
  
  Authorization Issues: The user or system trying to establish the RFC connection may not have the necessary authorizations to access the destination.
  
  
  Solution:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction code SM59 in the SAP GUI.
  Locate the RFC destination that is causing the error.
  Verify that the connection type is set to "G". If it is not, change it to "G" if that is appropriate for your use case.
  
  
  
  Review Connection Parameters:
  
  Ensure that all required parameters for the RFC destination are correctly filled out, including the target host, system number, client, and user credentials.
  
  
  
  Test the Connection:
  
  After making changes, use the "Test Connection" button in the SM59 transaction to verify that the connection can be established successfully.
  
  
  
  Check Authorizations:
  
  Ensure that the user or system account being used to establish the RFC connection has the necessary authorizations to access the destination.
  
  
  
  Consult Documentation:
  
  If you are unsure about the correct configuration for your specific scenario, consult the SAP documentation or reach out to your SAP Basis team for assistance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SU01: User Maintenance (to check user authorizations)
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error message.
  
  
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to resolve the ISLM_DI_GEN257 error and ensure that your RFC destination is configured correctly.