How To Fix VSCAN019 - Error when communicating with RFC destination &1: &2&3&4

SAP Error Message - Details

• Message type: E = Error

• Message class: VSCAN - Virus Scan Interface

• Message number: 019

• Message text: Error when communicating with RFC destination &1: &2&3&4

What causes this issue?

An error occurred when communicating with RFC destination &V1&.
The error text is:
&V2&&V3&&V4&

System Response

The action was not performed.

How to fix this error?

Check the data for the RFC destination and the underlying system.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VSCAN019 - Error when communicating with RFC destination &1: &2&3&4 ?

  The SAP error message VSCAN019 indicates an issue with communication to a Remote Function Call (RFC) destination. This error typically arises when there is a problem with the connection to the specified RFC destination, which can be due to various reasons. Here’s a breakdown of the potential causes, solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system defined in the RFC destination.
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system (e.g., incorrect hostname, port, or logon credentials).
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the systems.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the target system is active. You can use tools like ping or telnet to test connectivity.
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination for correctness (hostname, service, user, password, etc.).
  Test the connection using the "Connection Test" button in the RFC destination configuration.
  
  
  Review User Authorizations: Ensure that the user credentials used for the RFC connection have the necessary authorizations in the target system.
  Check Target System Status: Verify that the target system is up and running. If it is down, coordinate with the system administrators to resolve the issue.
  Firewall and Security Settings: Check if there are any firewall rules or security settings that might be blocking the communication. Work with your network/security team to ensure that the necessary ports are open.
  SAP Gateway Configuration: Ensure that the SAP Gateway is running and properly configured. You can check the status of the gateway using transaction SMGW.
  
  Related Information:
  
  Transaction Codes:
  
  SM59: To manage and test RFC destinations.
  SMGW: To monitor the SAP Gateway.
  SU01: To manage user authorizations.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to RFC communication.
  Logs: Review system logs (transaction SM21) and developer traces (transaction ST22) for additional error messages that might provide more context.
  
  By following these steps, you should be able to diagnose and resolve the VSCAN019 error effectively. If the issue persists, consider reaching out to SAP support for further assistance.