How To Fix SCLNT_HTTP415 - Invalid host name in SSL server certificate (ICM_HTTP_SSL_CERT_MISMATCH)

SCLNT_HTTP415 - Overview

• Message type: E = Error

• Message class: SCLNT_HTTP - Messages for HTTP Client for Respective Error Code

• Message number: 415

• Message text: Invalid host name in SSL server certificate (ICM_HTTP_SSL_CERT_MISMATCH)

What causes this issue?

The host name that is specified in the certificate of the server does
not match the name that was used for setting up the network connection.

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?

Check that the fully qualified host name, with domain, was used for the
network connection. Where possible, use the host name specified in the
server certificate, or contact the administrator of the server to import
a certificate with a valid name.

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 SCLNT_HTTP415 - Invalid host name in SSL server certificate (ICM_HTTP_SSL_CERT_MISMATCH) ?

  The SAP error message SCLNT_HTTP415 with the description "Invalid host name in SSL server certificate (ICM_HTTP_SSL_CERT_MISMATCH)" typically occurs when there is a mismatch between the hostname used in the URL and the hostname specified in the SSL certificate presented by the server. This can happen in various scenarios, such as when accessing an SAP system over HTTPS.
  
  Cause:
  
  
  Hostname Mismatch: The hostname you are using to access the SAP system does not match the Common Name (CN) or Subject Alternative Name (SAN) in the SSL certificate. For example, if you are accessing https://sap.example.com, but the certificate is issued for https://example.com, this will trigger the error.
  
  
  Self-Signed Certificates: If you are using a self-signed certificate, it may not be trusted by the client, leading to this error.
  
  
  Expired or Invalid Certificate: The SSL certificate may have expired or may not be valid for the domain you are trying to access.
  
  
  DNS Issues: There may be DNS