Hi,
The error means you have tried to create a certificate without adding one or more domains to be included on the certificate. In your screenshot your arrow is pointing to the "Title" for the managed certificate (which could just as easily be "Customer Site 1" and is not the domain name). This is automatically set from the IIS site name but is not necessarily your actual domain, it's just a label.
When you select an IIS website from the dropdown list it would normally populate the list of domain bindings you have already setup for that website in IIS. Here is an example:
Note that you can enter them manually (Add domains to certificate:) but that's usually not required if the website is already setup in IIS, unless you have intentionally not set a hostname in your bindings (why?).
Please do provide further details on the certify community forum if you would like to. I'd need to see your existing IIS bindings for that site. The green text in the list suggests you have already assigned one or more https bindings to that site in IIS.
The normal process is:
- Setup your site in with http bindings in IIS, set a hostname http binding in IIS for each hostname/domain you need on the same certificate.
- In Certify The Web, click New Certificate > Select Site, your website domains set (in IIS) in the previous step will be read by the app and displayed under 'Domains and Subdomains to include'. Then you can click Request Certificate to order, validate, download and apply the certificate. Subsequent renewals will be automatic.
[Edit] Here is my sample http binding in IIS (I also have the https binding because Certify The Web has already set it up for me):
