title: How to pass email suggestion to Azure AD B2C SignUp page
body: <p>Is there a way to suggest the signup email in a custom policy. I have users that need to signup only from invitational emails. </p>
  
  <p>I saw in the docs (<a href="https://docs.microsoft.com/bs-latn-ba/azure/active-directory-b2c/direct-signin" rel="nofollow noreferrer">https://docs.microsoft.com/bs-latn-ba/azure/active-directory-b2c/direct-signin</a>) that there is a way to suggest the login email in a custom policy Sign In by passing it as login_hint parameter in the request and adding DefaultValue="{OIDC:LoginHint} in the XML definition for "SelfAsserted-LocalAccountSignin-Email" TechnicalProfile. This works for Sign in but fails when I try to use the same trick in the "LocalAccountSignUpWithLogonEmail"</p>