Introduction

Are you using Entra External ID with Power Pages and want to customise the login experience? This guide walks through exactly that — applying your own branding, images, colours, and layout to the Entra login screen for external users.

This is especially useful for creating a polished, consistent experience when your users are accessing Power Pages from outside your organisation.

If you’re new to setting up Entra External ID for Power Pages, I’ve also got a full video walkthrough on how to configure that — I’ll link it below.

What You’ll Learn

In this video and post, we explore:

  • How to verify you’re in the correct Entra tenant for external ID customisation
  • Where to find Company Branding settings in Microsoft Entra
  • How to add:
    • Favicon
    • Background image
    • Custom page colours
    • Header and footer logos
    • Links for privacy and terms
  • Common pitfalls (like image size limits)
  • How to test your branding changes in a live Power Pages scenario

Why This Matters

The default login experience in Entra External ID works — but let’s face it — it’s pretty bland. For public-facing websites or citizen-facing portals, you want something that reinforces trust and shows attention to detail. Custom branding allows you to:

  • Match your corporate style
  • Reduce user confusion
  • Deliver a consistent login experience from start to finish

Tips to Remember

  • Images like background and logo must be under 300KB.
  • You’ll need the Organizational Branding Administrator role (or higher).
  • Don’t forget to test in the correct tenant — you’ll usually have a separate External tenant in Entra for this.
  • Email templates are not controlled here — we’ll look at that in another post.

Final Thoughts

This small step makes a huge difference in how professional your solution feels to users. Whether it’s a public sector form, citizen portal, or partner landing page, getting your login screen branded properly is worth the effort.

Let me know if you have any questions or want a hand setting up your Entra branding!

🔗 Watch on YouTube: Walk through Power Pages with Entra External ID
🔧 Need help? Contact me via iantweedie.biz

Originally posted on TechTweedie, going beyond the low code, my home for all things Power Platform and low-code DevOps.