Client-based calendar integration

You can set up client-side calendar integration so that your Zoom meetings and webinars on your Outlook client are synced with your Windows Zoom desktop app. This mode of calendar integration involves using MAPI framework, which unlike other calendar sync methods relies on the Zoom app directly communicating with Outlook client without a need to pass through server connections. This is particularly useful if your organization utilizes on-premise exchange environments, where customers may not be able to provide Zoom access to calendar data from the Exchange server directly.

Notes:

• If there is a large presence of mobile or mac devices in your organization, we do not recommend using MAPI for calendar integration, as currently, MAPI does not support these platforms.
• When using this MAPI-based integration, only your calendar events are synced, while contacts are not. To sync both, please use the non-MAPI based method. 

Prerequisites

• Zoom desktop app for Windows 5.5.0 (12454.0131) or later
• Calendar and contact integration enabled by your admin

Enable MAPI for calendar integration from account settings

1. As an admin or owner, sign in to the Zoom web portal.
2. In the navigation panel, click Account Management then Account Settings.
3. Click the Mail & Calendar tab. 
4. Under Integrations, click the Calendar and contacts integration toggle to enable or disable it.
   Note: This allows users to set up calendar and contacts integration and is enabled by default. 
5. If a verification dialog appears, click Enable or Disable to verify the change.
6. Under Choose default calendar and contact services for users, select Exchange. When users set up calendar and contacts integration, the default service will be selected.
7. Enable Use MAPI to integrate with Zoom desktop client (for Windows only).
8. Click Save.
   Note: After clicking the Save button, a verification dialog box will appear saying that the option Ask users to integrate Office 365 calendar when signing in with SSO credentials will be hidden. This means that this option will not be available for the account after enabling the Use MAPI to integrate with Zoom desktop client (for Windows only) option. Click Continue to proceed with the change.
9. (Optional) Click the lock  icon to force users on the account to only use MAPI for calendar integration.
   Note: If this setting is locked, this will automatically be configured for all users on the account, and only Windows users will be able to use calendar integration. If this setting is left unlocked, macOS users will be able to use O365 or Google authentication for calendar integration. 

Authenticating using MAPI calendar integration from user profile settings

1. Sign in to the Zoom web portal.
2. Click Profile.
3. Under Others, then Calendar and Contact Integration section, click Configure Calendar and Contact Service.
   Note: If the setting has been locked by an account admin, instead of having the option to connect the service, the following message will be displayed: “The calendar is automatically integrated for your Zoom Windows application”.
4. Select Exchange. 
5. Click Done.