How To Fix SHTTP826 - Invalid virtual host name: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SHTTP - Messages for Development Class SHTTP

• Message number: 826

• Message text: Invalid virtual host name: &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SHTTP826 - Invalid virtual host name: &1 ?

  The SAP error message SHTTP826, which states "Invalid virtual host name: &1," typically occurs in the context of the SAP Web Application Server (WAS) or when using the SAP Internet Communication Manager (ICM). This error indicates that the system is unable to resolve or recognize the specified virtual host name.
  Cause:
  
  Incorrect Configuration: The virtual host name specified in the SAP system configuration may be incorrect or not properly defined.
  DNS Issues: The DNS server may not be able to resolve the virtual host name to an IP address.
  Network Configuration: There may be issues with the network configuration, such as firewall settings or routing problems that prevent access to the specified host.
  Host File Entries: The host file on the server may not contain the correct entries for the virtual host name.
  ICM Settings: The Internet Communication Manager (ICM) settings may not be properly configured to handle the specified virtual host.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the SAP system and check the ICM configuration settings. You can do this by navigating to transaction RZ10 or RZ11 to review the parameters related to the ICM and virtual hosts.
  Ensure that the virtual host name is correctly defined in the icm/HTTP/port and icm/HTTP/host parameters.
  
  
  
  DNS Resolution:
  
  Verify that the virtual host name can be resolved by the DNS server. You can use commands like nslookup or ping from the command line to check if the host name resolves correctly.
  If the DNS is not resolving, consider adding the virtual host name to the /etc/hosts file (on Unix/Linux) or C:\Windows\System32\drivers\etc\hosts (on Windows) for local resolution.
  
  
  
  Network Configuration:
  
  Check firewall settings to ensure that traffic to and from the virtual host is allowed.
  Verify that there are no routing issues that could prevent access to the virtual host.
  
  
  
  ICM Logs:
  
  Review the ICM logs for any additional error messages or warnings that could provide more context about the issue. The logs can be found in the transaction SMICM.
  
  
  
  Restart ICM:
  
  After making any changes to the configuration, restart the ICM to apply the changes. This can be done through transaction SMICM by selecting the "Restart" option.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to ICM and virtual host configuration for more detailed guidance.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the SHTTP826 error.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  System Logs: Always check system logs (SM21) for any related errors that might provide additional context.
  
  By following these steps, you should be able to identify and resolve the cause of the SHTTP826 error in your SAP system.