How do I remove "unknown" placeholder from sign out screen

Here’s how you can address both issues in Microsoft Entra External ID:

✅ 1. Remove the “unknown” Placeholder on the Sign-Out Screen

The “unknown” label typically appears when the user's display name or profile information isn't populated in the ID token. To fix this:

🔧 Steps:

Include the profile scope in your OpenID Connect sign-in request.

Add the login_hint optional claim to your app registration:

1. Go to Microsoft Entra Admin Center.
   1. Navigate to Entra ID > App registrations.
      1. Select your app → Token configuration → Add optional claim.
         1. Choose ID token and add login_hint.
         Pass the logout_hint parameter during sign-out to ensure the correct user context is retained:

https://login.microsoftonline.com/{tenant}/oauth2/v2.0/logout?
post_logout_redirect_uri=https://yourapp.com/logout
&logout_hint={user_email}

This helps ensure the sign-out screen shows the correct user identity instead of “unknown” [1].

✅ 2. Remove Microsoft’s Privacy Statement and Address from Email Footer

By default, Microsoft includes its own privacy statement and address in system-generated emails. You can override this by customizing your organization’s privacy settings:

🔧 Steps:

1. Go to Microsoft Entra Admin Center.
2. Navigate to Entra ID > Overview > Properties.
3. Add:
   • Global Privacy Contact (your org’s privacy contact email).
     • Privacy Statement URL (link to your own privacy policy).
       • Technical Contact (support contact for users).

If these fields are left blank, Microsoft inserts its own default privacy info in emails and consent screens [2].

✅ Bonus: Use Custom URL Domains for Branding

To fully remove Microsoft branding (like ciamlogin.com) from login and email links:

• Set up Custom URL Domains via Azure Front Door.
• Example: Use login.yourdomain.com instead of Microsoft’s default.
• This improves branding and user trust [3].

Would you like help generating the Graph API calls or configuring these settings in the portal?

References

[1] Job Scheduler in Microsoft Fabric - Microsoft Fabric

[2] Tutorial - Start and Stop Microsoft Fabric Capacity - Lytix

[3] Microsoft Fabric: Capacity Cost Management Part 2, Automate Pause ...