Go to Settings > Integrations and Keys, click New key, and search for GoToMeeting. Click Continue, specify a key name, select the global preset so that you do not need to define your own OAuth credentials, and click Save.
Optionally, create your own OAuth credentials on the Zoom site, configure these as a new connector in Transposit, and then choose the configured connector above.
In the Integrations list, where your key is now included, click Authenticate..
The browser opens, letting you log in to your GoToMeeting account.
GoToMeeting is now enabled to interact with Transposit.
Now that you've configured your integration, add one or more of the integration's actions to an automation, test the automation, and then add the automation to an incident type.