I've followed all the documents and configured everything as stated in the document and in matched up the fields in the screen shot. However, it is still erroring out. Error is below. The domain is verified. I have both ACS URLs in the Enterprise App in Entra as Reply URLs. There are no extra spaces or slashes.
Error
We're sorry, your request was malformed or was unable to be completed for some reason. Try hitting the back button and restarting the process to see if it fixes the problem.
If you want the nerdy explanation, review the following JSON body.
"error" : "invalid_request",
"error_description" : "The request is missing a required parameter: redirect_uri",
"error_reason" : "missing_redirect_uri"