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Posted on by Opeyemi Ayilara

How to take user directly to Signup page when using combined signin and signup Azure b2c user flow in Powerpages

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Michael E. Gernaey 53,963 Moderator on at

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Hi @Opeyemi Ayilara

Just to be clear, you want to use the combined flow, which enables a user to sign in, or sign up (if they choose too), but instead you want to take them directly to the sign up page?

My question is, what is the user is already signed up? WHy would you want to force them to a page they already have done.

Can you clarify your exact reasons and desires on this?

If you are always going to force them then just use the Sign up flow and redirect them later to the sign in. I don't see why you would use the combined if you plan on forcing them always to the sign up.

If these suggestions help resolve your issue, Please consider Marking the answer as such and also maybe a like.

Thank you!
Sincerely, Michael Gernaey

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Opeyemi Ayilara 3 on at

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Thank you @Micheal ,

So the issue is new users do not want to click on Signin before they click on Sign up button , hence I have created two buttons, such that the Signin button takes the users to signin, however I have not been able to direct them to Sign up directly. Hence the question.

Thank you

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Suriyanarayanan V 201 on at

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When you use the combined sign‑in/sign‑up Azure AD B2C user flow in Power Pages, the URL always opens on the Sign‑in panel first.
This is expected behaviour — the combined flow does not support a direct link that forces the UI to open on the “Sign up” panel.

Why you can’t link directly to Sign‑up

Azure AD B2C combined policies do not expose a query parameter like:

?prompt=signup

or

?ui=signup

The UI is controlled internally by B2C, and Power Pages simply redirects to the policy URL.
So there is no supported URL that takes the user straight to the Sign‑up form.

This is why your Sign‑in button works (it just opens the policy), but your Sign‑up button cannot.

Supported workaround (recommended by Microsoft)

Use two separate user flows:

Sign‑in only

Sign‑up only

Then configure Power Pages authentication to use:

The Sign‑in policy for normal login

A custom link to the Sign‑up policy for new users

This gives you two URLs:

/signin → Sign‑in only

/signup → Sign‑up only

Your buttons can then link directly to each.

This is the only reliable way to take users straight to the registration screen.

How to implement it

1. In Azure AD B2C

Create:

B2C_1A_SignIn (sign‑in only)

B2C_1A_SignUp (sign‑up only)

2. In Power Pages

Go to:

Set up → Identity providers → Azure AD B2C

Configure:

Primary login policy → Sign‑in only

Custom registration link → URL of the Sign‑up policy

3. On your site

Your “Sign up” button can now link directly to:

/signin?policy=B2C_1A_SignUp

(or whatever your policy name is)

This opens the Sign‑up page immediately.

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