Microsoft is rolling out what it describes as a “major change” to Entra ID branding, and it’s attaching a firm deadline: IT admins must take action by Oct. 26.
For most everyday users, Entra ID — Microsoft’s cloud-based identity and access management service — stays out of sight. It’s the engine behind the accounts, sign-ins, and multi-factor authentication that keep corporate data locked down. But for organizations that have customized their sign-in experience, this rebranding could mean revisiting the look of their login pages entirely.
Here’s what we know so far about the change and why it matters.
What’s changing with Entra ID branding
According to reporting from Neowin, Microsoft is updating how Entra ID is branded across its services, and it’s labeling the update a “major change” rather than a routine cosmetic tweak.
The most visible impact lands on custom sign-in pages. Many organizations use Entra ID’s sign-in customization features to apply their own logos, colors, and messaging to the authentication flow. If Microsoft is altering the underlying branding structure, those custom pages may need to be reviewed — and possibly rebuilt — to stay consistent with the new look.
Why it matters for custom sign-in pages
Entra ID was formerly known as Azure Active Directory before Microsoft rebranded the service in 2023. Today it’s the backbone of identity management for millions of businesses, handling everything from single sign-on to conditional access policies that decide who can reach what.
Custom sign-in pages are one of the features organizations lean on to keep their branding intact when employees and customers authenticate. Instead of landing on a bare Microsoft page, users see a login screen that matches their company’s identity.
If the branding change affects the templates, assets, or configuration options behind those pages, admins may find that their existing customizations no longer render as expected. That’s precisely why Microsoft is asking admins to proactively review their setups rather than wait for users to report problems.
What IT admins need to do
The guidance boils down to this: don’t wait for something to break. With the Oct. 26 deadline in mind, admins should review any Entra ID custom sign-in page configurations currently in place.
That means checking whether your branded pages still align with the updated branding structure, and testing the sign-in experience across devices and browsers. If anything looks off, you’ll want to make adjustments before the change takes full effect.
Because this is a tenant-level identity change, it can affect everyone who signs in with a work or school account — not just the handful of people managing the settings directly. That makes a proactive review worthwhile, especially for larger organizations.
What this means for you
If you’re an end user, you probably won’t notice much beyond a possible shift in how your organization’s sign-in page looks. The security and functionality stay the same; only the visual branding may change.
But if you’re an IT admin or someone responsible for a company’s Microsoft accounts, treat this as actionable. The Oct. 26 deadline isn’t a suggestion — Microsoft is explicitly asking admins to take action, which typically signals a change that will be enforced or that will stop working as intended after that date.
How to get ready before Oct. 26
Start by inventorying every Entra ID tenant in your environment that uses custom sign-in pages. Then walk through each one to confirm the branding still renders correctly.
Keep an eye on official Microsoft channels for the full details of the change, including documentation on what specifically is being updated and how to adjust your configurations. Microsoft typically publishes these updates through its official support pages and admin guidance, so checking there will give you the authoritative steps to follow.
If you’re managing a large fleet, consider rolling out the review in phases so a single misconfigured tenant doesn’t leave a chunk of your workforce unable to sign in cleanly.
The bigger picture
This change fits into Microsoft’s ongoing effort to standardize how its identity services present themselves across the Power Platform, Microsoft 365, and related products. Consistent branding makes it easier for users to recognize legitimate Microsoft sign-in experiences — which also helps fight phishing, since attackers often spoof login pages.
For admins, the takeaway is less about the visuals and more about staying ahead of identity-layer changes that ripple across your whole organization. A quick review before the deadline keeps your sign-in experience intact and avoids a scramble later.
Source: Neowin
Over to you: Will you be reviewing your Entra ID sign-in pages before the Oct. 26 deadline, or waiting to see what Microsoft changes first?
