Upgrade Microsoft Office 365 Authentication Method to Microsoft Graph

Microsoft is retiring Exchange Web Services (EWS) for Microsoft Office 365 in October 2026. Microsoft Graph API replaces EWS. Upgrade the authentication method of Einstein Activity Capture, Inbox, and Lightning Sync to use Microsoft Graph to avoid service disruption.

Required Editions

Available in: Lightning Experience
Available with Einstein Activity Capture Standard in Sales in Starter, Pro Suite, Professional, and Enterprise Editions
Available with Unlimited Edition, Einstein 1 Sales Edition, and Agentforce 1 Edition
Available with Einstein for Sales, which is included in Einstein 1 Sales Edition and available for an extra cost in Enterprise and Unlimited Editions
Available with Sales Engagement, which is included with Sales in Performance and Unlimited Editions, and available for an extra cost in Professional and Enterprise Editions
Available with Revenue Intelligence, which is available for an extra cost in Enterprise and Unlimited Editions

Before you begin, confirm that your Azure admin has granted org-wide Microsoft Graph API access and permissions. See App ID for Microsoft Graph Authentication. The admin setting up the connection from Microsoft is required to be assigned the DirectoryRole of a Global Admin, Cloud Application Admin, or Application Admin.