How To Fix 6G028 - Error occurred when making RFC connection &

SAP Error Message - Details

• Message type: E = Error

• Message class: 6G - Messages for System Administration Assistant

• Message number: 028

• Message text: Error occurred when making RFC connection &

What causes this issue?

The R/3 connection &V1& could not be made.

System Response

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

How to fix this error?

Use Transaction <ZH>SM59</> and create the R/3 connection &V1&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 6G028 - Error occurred when making RFC connection & ?

  The SAP error message 6G028 indicates that there was an issue when attempting to establish a Remote Function Call (RFC) connection. This error can arise due to various reasons, and understanding the cause is essential for troubleshooting. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  Configuration Errors: The RFC destination may not be configured correctly in the SAP system (e.g., incorrect parameters, missing entries).
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target SAP system may be down or not reachable.
  Firewall Restrictions: Firewalls or security settings may be blocking the RFC connection.
  SAP Kernel Issues: There may be issues with the SAP kernel or the version of the software being used.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the target system is reachable from the source system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination (e.g., TCP/IP settings, target host, and service).
  Test the connection using the "Connection Test" button in SM59.
  
  
  
  Review User Authorizations:
  
  Ensure that the user ID used for the RFC connection has the necessary authorizations to access the target system.
  Check the roles and profiles assigned to the user.
  
  
  
  Check System Availability:
  
  Ensure that the target SAP system is up and running.
  Check the system logs for any errors or issues that may indicate downtime.
  
  
  
  Firewall and Security Settings:
  
  Verify that firewalls are configured to allow traffic on the required ports for RFC communication (typically port 3200 for SAP).
  Consult with your network/security team if necessary.
  
  
  
  SAP Kernel and Software Version:
  
  Ensure that both systems are running compatible versions of the SAP kernel and software.
  Consider applying any relevant patches or updates.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SM21: Check system logs for errors.
  ST22: Analyze dumps that may provide more context on the error.
  
  
  
  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 for detailed information on configuring and troubleshooting RFC connections.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.