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Turn Off Lightning Sync

After you migrate your Lightning Sync settings and assign users to Einstein Activity Capture, turn off Lightning Sync. Then, if you use Microsoft® Office 365 with Exchange Web Service, upgrade to Microsoft Graph as your connection method with Einstein Activity Capture.

Required Editions

The Lightning Sync migration tool is available in: Lightning Experience
Einstein Activity Capture is available in: Lightning Experience and the Salesforce mobile app
The Lightning Sync migration tool and Einstein Activity Capture are available in: Professional, Enterprise, Performance, and Unlimited Editions with Sales Cloud
User Permissions Needed
To turn off Lightning Sync: Customize Application
  1. From Setup, in the Quick Find box, enter Einstein Activity Capture, and then select Settings.
  2. From the Configuration tab, click Turn Off Lightning Sync.
    Users without the Einstein Activity Capture permission are removed from configurations and their contacts and events stop syncing. To get those users syncing again, give them the Einstein Activity Capture permission, and add them to a configuration.
  3. (Only if using Microsoft with Exchange Web Service) From Einstein Activity Capture Settings, Upgrade Microsoft Office 365 Authentication Method to Microsoft Graph.