How To Fix SRT_TW003 - Invalid mode for RFC

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_TW - Watcher Administration

• Message number: 003

• Message text: Invalid mode for RFC

Self-Explanatory Message

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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 SRT_TW003 - Invalid mode for RFC ?

  The SAP error message SRT_TW003: Invalid mode for RFC typically occurs in the context of SAP's integration technologies, particularly when dealing with Remote Function Calls (RFC) in the context of web services or when using the SAP Process Integration (PI) or Process Orchestration (PO) systems.
  Cause:
  The error usually indicates that there is an issue with the configuration of the RFC destination or the mode in which the RFC is being called. Common causes include:
  
  Incorrect RFC Destination Configuration: The RFC destination may not be set up correctly, or it may be pointing to an invalid or non-existent target system.
  Invalid Mode Specification: The mode specified for the RFC call (e.g., synchronous or asynchronous) may not be supported or incorrectly defined.
  Network Issues: There may be network connectivity issues between the systems involved in the RFC call.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to perform the requested operation.
  
  Solution:
  To resolve the SRT_TW003 error, you can take the following steps:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify the configuration of the RFC destination being used. Ensure that it is correctly set up and that the target system is reachable.
  Test the connection to the RFC destination to ensure it is working properly.
  
  
  
  Review Mode Settings:
  
  Check the mode in which the RFC is being called. Ensure that the mode (synchronous or asynchronous) is correctly specified and supported by the target system.
  If you are using a web service, ensure that the service is configured to handle the specified mode.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues preventing communication between the systems. Check firewalls, VPNs, or any other network configurations that might block the connection.
  
  
  
  Authorization Check:
  
  Verify that the user credentials used for the RFC call have the necessary authorizations to execute the function module or service being called.
  Check the roles and authorizations assigned to the user in transaction PFCG.
  
  
  
  Review Logs:
  
  Check the application logs (transaction SLG1) for any additional error messages or details that might provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific RFC function or web service you are using for any known issues or additional configuration steps.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 (RFC Destinations), SLG1 (Application Log), and PFCG (Role Maintenance) for troubleshooting.
  
  By following these steps, you should be able to identify and resolve the cause of the SRT_TW003 error in your SAP environment.