To activate the External Calendars Add-on, go to Settings
Click ServiceM8 Add-ons
Click Yes to confirm
To configure your iPhone/iPad device, tap Settings
Tap Passwords and Accounts
Tap Add Account
Tap Add Subscribed Calendar
Tap twice in the server field to bring up the option to Paste.
Then tap paste to add the URL you copied from the email/sms earlier. Tap Next to finish.
Click Save and that's it.
You should see your ServiceM8 schedule appear in your calendar in the next few minutes, repeat the process for each staff member's schedule you would like to see.
NOTE: You are not able to make changes to your ServiceM8 Schedule, only view it. To make changes you must use the ServiceM8 Dispatch Board, or the iPhone/iPad app. Also be careful of recent changes, as while the iPhone/iPads calendar is kept in sync with your ServiceM8 Schedule, it's not real-time - so recent scheduling changes may not be reflected.