How To Fix SN444 - Error when tool was called by RFC (destination = &)

SAP Error Message - Details

• Message type: E = Error

• Message class: SN - ABAP/4 dump analysis messages

• Message number: 444

• Message text: Error when tool was called by RFC (destination = &)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SN444 - Error when tool was called by RFC (destination = &) ?

  The SAP error message SN444 typically indicates that there was an issue when a tool or function was called via Remote Function Call (RFC) in the SAP system. The error message usually includes a destination parameter (indicated by &), which specifies the RFC destination that was being used when the error occurred.
  Cause:
  The SN444 error can be caused by several factors, including but not limited to:
  
  
  RFC Destination Issues: The specified RFC destination may not be correctly configured, or it may be inactive. This can happen if the destination is not set up properly in transaction SM59.
  
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  
  
  Authorization Issues: The user or service account making the RFC call may not have the necessary authorizations to execute the function or access the required resources.
  
  
  Function Module Issues: The function module being called may not exist, may be incorrectly implemented, or may have been deactivated.
  
  
  System Configuration: There may be configuration issues in the SAP system that prevent the tool from executing properly.
  
  
  Solution:
  To resolve the SN444 error, you can take the following steps:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 and verify the configuration of the RFC destination specified in the error message.
  Test the connection to ensure it is working properly. Use the "Connection Test" option in SM59.
  
  
  
  Check Network Connectivity:
  
  Ensure that there are no network issues preventing communication between the systems. You can use tools like ping or traceroute to check connectivity.
  
  
  
  Review Authorizations:
  
  Check the authorizations of the user or service account that is making the RFC call. Ensure that it has the necessary permissions to execute the function module.
  
  
  
  Verify Function Module:
  
  Check if the function module being called exists and is active. You can do this by using transaction SE37 to look up the function module.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Consult Documentation:
  
  If the error persists, consult SAP documentation or support resources for more specific guidance related to the tool or function being called.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, providing them with the error details and any troubleshooting steps you have already taken.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM59 - RFC Destinations
  SE37 - Function Module
  SM21 - System Log
  SLG1 - Application Log
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  By following these steps, you should be able to identify and resolve the underlying cause of the SN444 error in your SAP system.