How To Fix ALVHT202 - Error in RFC connection &3 : &1 &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ALVHT - ALV: Messages Template Maintenance, Office Integration

• Message number: 202

• Message text: Error in RFC connection &3 : &1 &2

What causes this issue?

An error occurred calling the RFC server. The requested function cannot
be executed.

System Response

The action was terminated.

How to fix this error?

Contact your system administrator to test if the external service
works.

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 ALVHT202 - Error in RFC connection &3 : &1 &2 ?

  The SAP error message ALVHT202 indicates that there is an issue with the Remote Function Call (RFC) connection. This error typically occurs when there is a problem with the communication between the SAP system and another system or service that it is trying to connect to. The message format is as follows:
  ALVHT202 Error in RFC connection &3 : &1 &2
  Where:
  
  &1 usually represents the error message or description.
  &2 may provide additional details about the error.
  &3 indicates the name of the RFC destination that is causing the issue.
  
  Causes
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system (transaction SM59).
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Target System Down: The target system may be down or not reachable.
  Firewall Restrictions: Firewalls may be blocking the communication between the systems.
  Incorrect Parameters: Incorrect parameters in the RFC destination settings can lead to connection failures.
  
  Solutions
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the target system is stable and operational. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination: Go to transaction SM59 and check the configuration of the RFC destination. Ensure that the connection type, target host, and system number are correctly set.
  Test RFC Connection: In transaction SM59, select the RFC destination and use the "Test Connection" option to see if the connection can be established successfully.
  Check User Authorizations: Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  Check Target System Status: Verify that the target system is up and running. If it is down, you will need to wait until it is back online.
  Review Firewall Settings: If applicable, check the firewall settings to ensure that they are not blocking the required ports for RFC communication.
  Review Logs: Check the SAP system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context about the issue.
  
  Related Information
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SM21: System Log
  SLG1: Application Log
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections.
  Documentation: Review SAP documentation on RFC connections for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.