Forum Discussion
Can the built-in "No account? Create one" link redirect to a custom sign-up page?
I'm using Microsoft Entra External ID with a built-in sign-in/sign-up user flow.
On the Microsoft-hosted sign-in page, the "No account? Create one" link always redirects users to the default Entra sign-up page.
I already have a custom registration page and would like this built-in link to redirect to my custom URL instead.
Is there any supported way to customize the destination of this link in a built-in user flow? If not, could someone confirm whether this behavior is fixed by design?
Thanks!
2 Replies
What you're essentially looking for is the native authentication, where entire authentication is using API calls with EEID instead of you redirecting to EEID to perform SISU
https://learn.microsoft.com/en-us/entra/identity-platform/concept-native-authentication
If you're using redirect based SISU (sign-in, sign-up) where EEID hosts the SISU pages, there is currently very little customization option but MS is also making improvement on that.
With the current documented External ID feature set, that built-in link’s destination is not configurable in a browser-delegated sign-up/sign-in user flow. The page is Microsoft-hosted, and the user flow controls the transition from sign-in to its Entra sign-up step. Company branding, CSS, localized strings, page layout, and custom URL domains can change presentation or the authentication host, but not the link target.
If registration must happen on your page, add a separate Register action in the application before starting the Entra authorization request. Then disable sign-up in the user flow so users do not see a second registration route; Microsoft documents this through the user flow’s isSignUpAllowed setting.
If you need Entra-managed sign-up with an app-owned UI, evaluate native authentication where your platform supports it. It uses Microsoft’s SDK/API while your application owns the screens and flow handling.
