How To Fix 0T090 - Test of group &1 not possible, since connection to &2 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: 0T - WBO Configuration Editor / SE06

• Message number: 090

• Message text: Test of group &1 not possible, since connection to &2 failed

What causes this issue?

You cannot test the target group &V1&, since the clients in the SAP
system &V2& could not be read. You need to set up an RFC call for the
adjustment with the existing clients in the affected SAP systems.

System Response

The target groups are ready to be maintained.

How to fix this error?

Make sure that the required SAP systems are available before the first
import.

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 0T090 - Test of group &1 not possible, since connection to &2 failed ?

  The SAP error message 0T090 indicates that a test of a group (usually a user group or a configuration group) could not be performed because the connection to a specified system or server failed. This error typically arises in scenarios involving system connections, such as when testing RFC (Remote Function Call) connections or when trying to access a specific system for configuration or data retrieval.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  Incorrect Configuration: The connection parameters (like hostname, port, or credentials) for the target system may be incorrectly configured.
  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 connection to the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the target system.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the target system is reachable from the SAP system.
  
  
  
  Verify Connection Configuration:
  
  Go to transaction SM59 (RFC Destinations) and check the configuration of the RFC destination that corresponds to the group &1.
  Ensure that the hostname, service (port), and other parameters are correct.
  
  
  
  Test the Connection:
  
  In transaction SM59, select the RFC destination and use the "Test Connection" option to see if the connection can be established successfully.
  
  
  
  Check Target System Status:
  
  Ensure that the target system is up and running. If it is down, coordinate with the system administrators to resolve the issue.
  
  
  
  Review Firewall Settings:
  
  Check if there are any firewall rules that might be blocking the connection to the target system. Work with your network/security team to ensure that the necessary ports are open.
  
  
  
  Check User Authorizations:
  
  Ensure that the user account being used to connect to the target system has the necessary authorizations. This may involve checking roles and permissions in both the source and target systems.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer trace (transaction ST22) for any additional error messages that might provide more context about the failure.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  SICF: Maintain HTTP Services (if applicable for web services)
  
  
  
  Documentation: Refer to SAP Help Portal or SAP Notes for specific guidance related to your version of SAP and the context in which the error occurs.
  
  
  If the issue persists after following these steps, consider reaching out to SAP support or your internal IT support team for further assistance.