How To Fix /SMB/CUSTOMIZING030 - The remote function module has not been called through a trusted RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/CUSTOMIZING -

• Message number: 030

• Message text: The remote function module has not been called through a trusted RFC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/CUSTOMIZING030 - The remote function module has not been called through a trusted RFC ?

  The SAP error message /SMB/CUSTOMIZING030 indicates that a remote function module (RFC) has not been called through a trusted RFC connection. This typically occurs when there is an attempt to execute a remote function call that requires a trusted connection, but the connection being used is not configured as trusted.
  Cause:
  
  RFC Configuration: The RFC connection being used is not set up as a trusted connection. Trusted RFCs allow for secure communication between SAP systems without requiring user credentials for each call.
  User Authorization: The user executing the function may not have the necessary authorizations to perform the action.
  Network Issues: There may be network issues or misconfigurations that prevent the trusted connection from being established.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check RFC Connection:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC connection that is being used.
  Ensure that it is configured as a "Trusted RFC". This can be done by checking the settings in the RFC connection configuration.
  
  
  
  Configure Trusted RFC:
  
  If the RFC connection is not trusted, you can configure it as a trusted connection. This typically involves:
  
  Setting the "Trusted" checkbox in the RFC connection settings.
  Ensuring that the appropriate user mapping is set up in the RFC destination.
  
  
  
  
  
  User Authorizations:
  
  Verify that the user executing the remote function has the necessary authorizations. You can check this using transaction SU53 to analyze authorization failures.
  
  
  
  Check Network Configuration:
  
  Ensure that there are no network issues preventing the trusted connection from being established. This may involve checking firewall settings, network routes, and other connectivity issues.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to trusted RFCs for additional configuration steps or troubleshooting tips.
  
  
  
  Related Information:
  
  Trusted RFC: A trusted RFC connection allows for secure communication between SAP systems without requiring user credentials for each call. This is particularly useful for background jobs or automated processes.
  RFC Authorization: Ensure that the user has the necessary authorizations to execute the remote function module. This may involve roles and profiles in the SAP system.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  
  By following these steps, you should be able to resolve the /SMB/CUSTOMIZING030 error and successfully call the remote function module through a trusted RFC.