Before you begin: Create your calendar feed
If you don't already have your subscription feed URL from the Detail Bookie back office, visit this guide first:
Add the calendar to your Android Google Calendar app
Subscribe to the calendar from the browser by following this guide.
Open settings in your Google Calendar phone app.
Your calendar subscription added in the browser appears as an optional calendar in your phone app. Click on that calendar and turn on the Sync setting to sync the calendar to your phone.