I’m setting up Windows Admin Center, and I enabled Entra authentication, so that our IT team can authenticate securely to it with their domain creds. Domain is connected and synced with entra connect.

When trying to log on, I get this error

AADSTS500031: Cannot find signing certificate configured.

From my google searches, everything points to going to SSO in the enterprise app, clicking on SAML and adding the required items there. But unlike everyone in the links where that worked, I get this:

Then the Learn more link sends me here:

https://learn.microsoft.com/en-us/entra/identity/enterprise-apps/v2-howto-app-gallery-listing#listing-requests-by-customers

I’m just trying to set this up for our IT team to log in to WAC to administer servers, and the enterprise app is our local domain. Is this process the only way to make this work? I have to create documentation, and send an app to be published publicly? But that app is my local domain. That can’t be right, can it? Is this the only way or is there any way to do this more simply?

–Tried to enable SAML for SSO, but was presented with long process that seems more apt for a public enterprise app.