How To Fix CM_SERVICE_ADMIN103 - No connection can be made to service &1 on server &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SERVICE_ADMIN - Service Administration

• Message number: 103

• Message text: No connection can be made to service &1 on server &2

What causes this issue?

Although the service &V1& is running on server &V2& and is registered
under the program ID &V3& at gateway &V4&, a connection to the server
could not be established. The server may be busy or the network
connection may be faulty.

System Response

The connection test could not be performed.

How to fix this error?

Repeat the connection test.
If the connection problems continue, try to start the service again or
notify your system administrator.

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 CM_SERVICE_ADMIN103 - No connection can be made to service &1 on server &2 ?

  The SAP error message CM_SERVICE_ADMIN103 indicates that there is an issue with connecting to a specific service on a designated server. This error can arise due to various reasons, and understanding the cause is crucial for troubleshooting. Here’s a breakdown of potential causes, solutions, and related information:
  Causes:
  
  Service Not Running: The service you are trying to connect to may not be running on the specified server.
  Network Issues: There could be network connectivity problems between the client and the server.
  Firewall Restrictions: A firewall may be blocking the connection to the service.
  Incorrect Configuration: The service might be misconfigured, leading to connection issues.
  Server Overload: The server may be overloaded or experiencing high traffic, causing it to reject new connections.
  Authentication Issues: There may be issues with user authentication or authorization to access the service.
  
  Solutions:
  
  Check Service Status: Verify that the service is running on the specified server. You can do this by checking the service management console or using command-line tools.
  Network Connectivity: Test the network connection to the server using tools like ping or telnet to ensure that the server is reachable.
  Firewall Settings: Review firewall settings on both the client and server sides to ensure that the necessary ports are open for communication.
  Configuration Review: Check the configuration settings for the service in the SAP system to ensure they are correct. This includes verifying the service name and server address.
  Server Load: Monitor the server's performance to see if it is under heavy load. If so, consider scaling resources or optimizing performance.
  Authentication Check: Ensure that the user has the necessary permissions to access the service. Check user roles and authorizations in the SAP system.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Logs: Review the application and system logs for any additional error messages or warnings that could provide more context about the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Refer to the official SAP documentation for the specific service you are trying to connect to for any additional configuration or troubleshooting steps.
  
  By systematically checking these areas, you should be able to identify and resolve the issue causing the CM_SERVICE_ADMIN103 error.