Sometimes finding the correct Google Calendar link that is compatible with your app dashboard can be tricky. Follow the steps below to find the correct Google Calendar link:
When viewing your iCal/Google Calendar, you’ll see to the left My Calendars. Below it the names of your calendars.
Hover over the calendar you wish to use in your app.
Select the ellipsis, then Settings and Sharing in the dropdown options.
You'll then come to another page - scroll all the way down to the bottom of that page, and you’ll find something that says Public Address in iCal format. Immediately below that there will be a link.
This is the iCal/Google Calendar link your app needs!