access portal with redirect URL

Hi all,

I've an application that normolly works like this example.com ---redirct to---> examplego.com (it's a login page) ---then redirct to--->example.com (after the login)

now in APM I want to create an access portal for that app

noting that when I create access portal with example.com it's not working as it redirecting to examolego.com

and when I do the opposite by creating access portal with examplego.com it works but after logging in the app not working