Google OAuth Verification on a Subdomain

[RDA]

I have a project and with OAuth login. Customers use the OAuth login to connect their Google Ads account to our Google Ads management account, not to login to our application. Our production server is on a subdomain because our main domain is used for our marketing website. I received an email in reference to the  verification video demo I made for Google that the video must be on the production server. The subdomain is our production server for our application.

How can I get this verified on our subdomain?

[siegfredv]

You would still need to verify your Domain and add it as an Authorized Domain, before you can use any of its subdomains.