Entra ID app registration

All Microsoft Graph-based connectors use an Entra ID (Azure AD) app registration with client credentials:

Credential	Where to get it
tenant_id	Microsoft Entra admin center → Identity → Overview → Tenant ID
client_id	App registrations → your app → Application (client) ID
client_secret	Same app → Certificates & secrets → New client secret

1. Register an application in Microsoft Entra ID.
2. Create a client secret under Certificates & secrets.
3. Under API permissions, add Microsoft Graph application permissions for the APIs you need (for example Files.ReadWrite.All, Sites.ReadWrite.All, Mail.Send, Mail.Read), then grant admin consent.
4. For SharePoint, also collect site/library identifiers — see SharePointService.

Docs:

• Register an application
• Microsoft Graph permissions reference
• Get access without a user (client credentials)

Connectors that use this

• SharePointService
• OneDriveService
• OutlookService
• MSGraphWebhooks
• MSGraphDeltaService