# Appendix

### Service and authentication method matrix

| <p><br></p>                      | Service       | Auth Method                                                  | Zoom Calendaring Service Stores                                                         | Endpoint Receives at Sign-In                                               | Endpoint Retrieves Calendar From |
| -------------------------------- | ------------- | ------------------------------------------------------------ | --------------------------------------------------------------------------------------- | -------------------------------------------------------------------------- | -------------------------------- |
| <p>User Calendars</p><p><br></p> | Microsoft 365 | OAuth                                                        | Access and refresh token for each user account.                                         | Access token from Zoom Calendaring Service.                                | Microsoft 365                    |
| Exchange Server                  | Basic         | Username and password for each user account.                 | Username and password from Zoom Calendaring service.                                    | Exchange Server                                                            |                                  |
| Google Workspace                 | OAuth         | Access and refresh token for each user account.              | Access token from Zoom Calendaring Service.                                             | Google Workspace                                                           |                                  |
| <p>Zoom Rooms</p><p><br></p>     | Microsoft 365 | OAuth                                                        | Access and refresh token for the Zoom Rooms service account.                            | Access token for Zoom Rooms service account from Zoom Calendaring Service. | Microsoft 365                    |
| Exchange Server                  | Basic         | Username and password for the Zoom Rooms service account.    | Username and password for the Zoom Rooms service account from Zoom Calendaring Service. | Exchange Server                                                            |                                  |
| Google Workspace                 | OAuth         | Access and refresh token for the Zoom Rooms service account. | Access token for Zoom Rooms service account from Zoom Calendaring Service.              | Google Workspace                                                           |                                  |
| Enhanced API Connector (EAC)     | Microsoft 365 | OAuth                                                        | Access and refresh token for the EAC service account.                                   | Calendaring data                                                           | Enhanced API Connector\*         |
| Exchange Server                  | Basic         | Username and password for the EAC service account.           | Calendaring data                                                                        | Enhanced API Connector\*                                                   |                                  |
| Google Workspace                 | OAuth         | Access and refresh token for the EAC service account.        | Calendaring data                                                                        | Enhanced API Connector\*                                                   |                                  |

\* EAC endpoints retrieve their calendaring data from the EAC, which in turn retrieves its calendaring data from the Zoom Calendaring Service. In other words, the EAC service and its associated endpoints do not connect to Microsoft 365, Exchange, or Google Workspace.