Troubleshooting a Chain Validity Message While Creating or Modifying a Website or Application

Problem
While creating or modifying a website or web application, a chain validity message displays.

Solution
Check the following:

• If you selected a host certificate, you need ensure
• The host certificate (.pfx) is imported in the Personal store,
  its Private Key is exportable and imported in the Personal store.
• Its root (.cer file) in the Trusted Root Certification Authorities store of Local machine certificates.
• If Self-signed certificate is used for website/web application creation then it must be imported in the Personal, as well as the Trusted Root Certification Authorities store of Local machine certificates in the Windows Certificate store.
• This message always displays if you use a host certificate for creating a website. You should ignore it.
• For working with the Windows App client on a remote machine other than the web server (IIS): You have imported the root certificate (.cer file) of the host certificate used for website/web application creation in the Trusted Root Certification Authorities store of Local machine certificates store in the Windows Certificate store of the machine where you are launching the Windows App client. Otherwise, you will not be able to launch the Windows App client.