In MyQ, Settings, External Systems, there are two sections:
External Systems, and
REST API applications
The External Systems section is used for:
setting up Microsoft Exchange Online
setting up Gmail (with OAuth2)
setting up SharePoint Online
setting up Amazon S3
setting up OneDrive Business
setting up Microsoft Universal Print
the MyQ and ScannerVision integration (embedded terminals and a MyQ Ultimate license are required; you can find further details in MyQ Smart Workflows and in MyQ Embedded terminal manuals).
In the REST API applications section you can add applications to MyQ by clicking +Add and filling in the Title and Scope. The Client ID and Secret fields should be used for the application’s configuration.