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Branding and customisation in Microsoft 365

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Branding and customisation in Microsoft 365

How to apply your organisation's branding across Microsoft 365 — logos, themes, sign-in pages, and app launcher customisation.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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01

Tenant-wide branding (Microsoft 365 admin center)

In admin.microsoft.com → Settings → Org settings → Organization profile → Custom themes:

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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02

Entra ID sign-in branding

The Microsoft 365 sign-in page (and SAML / OIDC sign-in for apps using Entra ID) is branded in Entra admin center → Identity → User experiences → Company branding:

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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03

SharePoint and Viva Connections branding

For the intranet experience:

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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04

Teams branding

Limited but increasing:

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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05

Outlook branding

Email signatures via cloud signatures, transport rules, or third-party signature management tools (covered in the Outlook signatures guide).

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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06

Common mistake

The most common mistake is configuring tenant branding in the Microsoft 365 admin center but not configuring Entra ID company branding — so the sign-in page is generic Microsoft, then the post-sign-in experience is bran…

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/microsoft-365-branding

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