Once you have installed the GoToWebinar Plugin, a new option for GoToWebinar will be available within Configuration > Email & Integration > GoToWebinar.

NOTE: After initial installation of the Plugin, close the Configuration window and then re-open it to reveal the option in the list.

A new window will pop open, asking you to login to GoToWebinar:

Once signed in to GoToWebinar, you will be asked to authorise Workbooks to use the credentials you have logged in with. To continue using the integration, click “Allow”.

If successful, you will see the following message. After 5 seconds, the window will automatically close.

If you did not click Allow, you will see the following message and will be unable to use the integration: