I'm setting up SSO in PRTG to work with our Azure AD. I have followed all the Paessler guides for the setup beginning with adding PRTG to the app registrations and the PRTG SSO configurations. When I click the "load Configuration" button after putting in the endpoint data it auto-populates the associated fields. Client ID and secret fields are populated. I click "Test Single Sign-On Authentication Endpoint and it returns "200 OK"
The "Log in with single sign-on" button is now in the sign-on page. I click it, go through the normal Azure sign in prompts and get prompted to authenticate with the app on my phone as normal, and get the prompt "stay logged in" which I always use. It then takes me to an Azure error message:
Sign in Sorry, but we’re having trouble signing you in.
AADSTS50011: The reply URL specified in the request does not match the reply URLs configured for the application: '0c55602b-4767-47fd-8374-c68ed30deb66'.
I know it's probably something simple, I just don't know what to fine-tune.