How To Fix RSSDK021 - Specify a functional RFC destination

SAP Error Message - Details

• Message type: E = Error

• Message class: RSSDK -

• Message number: 021

• Message text: Specify a functional RFC destination

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSSDK021 - Specify a functional RFC destination ?

  The SAP error message RSSDK021, which states "Specify a functional RFC destination," typically occurs when a function module or a program is trying to execute a remote function call (RFC) but does not have a valid RFC destination specified. This can happen in various scenarios, such as when using remote-enabled function modules or when trying to connect to another SAP system.
  Cause:
  
  Missing RFC Destination: The most common cause is that the RFC destination has not been defined in the system or is not specified in the function call.
  Incorrect Configuration: The RFC destination may be incorrectly configured or not accessible due to network issues or authorization problems.
  Programmatic Error: The code that is supposed to call the RFC may not be correctly specifying the destination.
  
  Solution:
  
  
  Define RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Check if the required RFC destination is defined. If not, create a new RFC destination.
  Ensure that the destination type is set to "Functional" for functional RFCs.
  Test the connection to ensure it is working correctly.
  
  
  
  Check Configuration:
  
  Verify the settings of the RFC destination, including the target system, user credentials, and connection type.
  Ensure that the network settings allow for communication between the systems.
  
  
  
  Specify the RFC Destination in Code:
  
  If you are calling a function module programmatically, ensure that you are specifying the RFC destination correctly in your code. For example, when using CALL FUNCTION, you can specify the destination like this:
  CALL FUNCTION 'FUNCTION_NAME' DESTINATION 'RFC_DESTINATION_NAME'.
  
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the RFC destination.
  
  
  
  Check for Typographical Errors:
  
  Ensure that there are no typographical errors in the RFC destination name in your code or configuration.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SE37: To view and test function modules.
  SE80: To view and manage development objects.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on RFC and functional RFCs.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  By following these steps, you should be able to resolve the RSSDK021 error and successfully specify a functional RFC destination.