How To Fix CM_SERVICE_ADMIN408 - Host name for the SAP gateway (&1 / &2) could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SERVICE_ADMIN - Service Administration

• Message number: 408

• Message text: Host name for the SAP gateway (&1 / &2) could not be determined

What causes this issue?

The host name for the SAP gateway (IP address: &V1&; gateway service:
&V2&) could not be determined.

System Response

The action is continued.

How to fix this error?

Under certain conditions this may have a negative effect on how service
administration functions. If this is the case, notify your system
administrator.

Procedure for System Administrators

Check the IP address and logical name of the gateway.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_SERVICE_ADMIN408 - Host name for the SAP gateway (&1 / &2) could not be determined ?

  The SAP error message CM_SERVICE_ADMIN408 indicates that the system is unable to determine the host name for the SAP gateway. This can occur due to various reasons related to network configuration, DNS resolution, or system settings. Below are the potential causes, solutions, and related information for this error:
  Causes:
  
  DNS Resolution Issues: The hostname of the SAP gateway cannot be resolved to an IP address due to DNS misconfiguration.
  Incorrect Hostname Configuration: The hostname specified in the SAP system configuration may be incorrect or not properly set up.
  Network Connectivity Problems: There may be network issues preventing the SAP system from reaching the gateway host.
  SAP Profile Parameters: The parameters in the instance profile (e.g., gw/host, gw/service) may not be correctly configured.
  Firewall or Security Settings: Firewalls or security settings may be blocking access to the gateway.
  
  Solutions:
  
  
  Check DNS Configuration:
  
  Ensure that the DNS server is correctly configured and reachable.
  Use commands like nslookup or ping to verify that the hostname can be resolved from the server where the SAP system is running.
  
  
  
  Verify Hostname in SAP Configuration:
  
  Check the instance profile parameters for the SAP gateway. You can do this using transaction RZ10 or by directly editing the profile files.
  Ensure that the parameters gw/host and gw/service are correctly set.
  
  
  
  Test Network Connectivity:
  
  Use tools like ping or traceroute to check if the SAP system can reach the gateway host.
  Ensure that there are no network issues or outages.
  
  
  
  Review Firewall Settings:
  
  Check if there are any firewall rules that might be blocking access to the SAP gateway.
  Ensure that the necessary ports for SAP communication are open.
  
  
  
  Restart SAP Services:
  
  Sometimes, simply restarting the SAP services can resolve transient issues.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Gateway: The SAP gateway is a communication interface that allows different SAP systems and external applications to communicate with each other.
  Transaction Codes: You can use transaction codes like SMGW (Gateway Monitor) to monitor the status of the SAP gateway and check for any issues.
  SAP Documentation: Refer to the official SAP documentation for detailed information on configuring the SAP gateway and troubleshooting connectivity issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your network administrator or SAP Basis team for further assistance.