1Q450 - Error in module & while processing the check for external rfc call

SAP Error Message - Details

• Message type: E = Error

• Message class: 1Q - Messages In-House Banking

• Message number: 450

• Message text: Error in module & while processing the check for external rfc call

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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AnswerBot

• What is the cause and solution for SAP error message 1Q450 - Error in module & while processing the check for external rfc call ?

  The SAP error message 1Q450 indicates that there is an issue with an external RFC (Remote Function Call) when processing a request in a specific module. This error can arise due to various reasons, including configuration issues, network problems, or issues with the external system being called.
  Causes of Error 1Q450
  
  
  Configuration Issues: The RFC destination may not be correctly configured in the SAP system. This includes incorrect connection parameters, such as the target system's IP address, port, or user credentials.
  
  
  Network Problems: There may be network connectivity issues between the SAP system and the external system. This could be due to firewalls, routing issues, or the external system being down.
  
  
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to access the external system.
  
  
  External System Issues: The external system may be down, misconfigured, or experiencing its own errors that prevent it from processing the request.
  
  
  SAP System Issues: There may be issues within the SAP system itself, such as missing or incorrect function modules or program errors.
  
  
  Solutions to Error 1Q450
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in SAP.
  Verify the configuration of the RFC destination. Ensure that the connection parameters (like target host, service, and user credentials) are correct.
  Test the connection using the "Test Connection" button to see if it is successful.
  
  
  
  Network Connectivity:
  
  Check the network connection between the SAP system and the external system. Ensure that there are no firewalls or network issues blocking the connection.
  Use tools like ping or telnet to verify connectivity to the external system.
  
  
  
  Authorization Check:
  
  Ensure that the user credentials used for the RFC call have the necessary authorizations in both the SAP system and the external system.
  
  
  
  Check External System:
  
  Verify that the external system is up and running. Check logs or monitoring tools on the external system for any errors or issues.
  
  
  
  Review SAP Logs:
  
  Check the SAP system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages or information that could provide more context about the issue.
  
  
  
  Debugging:
  
  If you have access to the ABAP code that is making the RFC call, consider debugging it to see if there are any issues in the logic or parameters being passed.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific module or function you are working with for any known issues or additional troubleshooting steps.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: RFC Destinations
  SM21: System Log
  SLG1: Application Log
  ST22: Dump Analysis (for ABAP runtime errors)
  
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Community Forums: Consider searching or posting on SAP community forums for insights from other users who may have encountered the same issue.
  
  
  By following these steps, you should be able to identify and resolve the cause of the 1Q450 error in your SAP system.