Microsoft 365

Connect the Microsoft 365 suite to Glean

Register one Glean app in Microsoft Entra ID and set up certificate authentication. SharePoint and OneDrive inherit the same credentials, so you configure the suite once before either child connector.

Suite connectorSharePointOneDriveCertificate authIdentity crawling

Choose your Microsoft 365 setupMicrosoft 365 overview

At a glance

Authentication

Certificate-based Microsoft Entra app (app-only application permissions)

Child connectors

SharePoint and OneDrive inherit the parent app credentials

App registration

One shared Glean app, inherited by the child connectors

What it covers

Identity crawling for the suite, plus content once children are set up

Required role

Microsoft 365 Global Administrator

Choose your path

Both paths set up the same one-app Microsoft 365 suite. Which one is yours depends on your Glean deployment, not on when you personally connect Microsoft 365.

Onboarding

New setup

You're on a new Glean deployment, created on or after August 14th, 2026. This guided walkthrough registers one Glean app in Microsoft Entra ID, adds certificate authentication, and connects the suite so SharePoint, OneDrive, and Outlook can join it.

Previous setup

You're on an existing Glean deployment. Even if you're connecting Microsoft 365 for the first time, use the full configuration reference. It covers app registration, identity permissions, certificate authentication, tenant size, and additional apps for faster crawling.

Not sure which is yours? Choose your Microsoft 365 setup.

Child connectors

After you save the suite, set up SharePoint and OneDrive. Each inherits the parent app credentials and asks only for child-specific configuration.

SharePoint

Index SharePoint sites, pages, document libraries, files, and lists.

OneDrive

Index personal drives and shared files from OneDrive.

Support

Error codes

Look up Microsoft 365 connector error codes and what they mean.