An inspection's contact(s) can be edited after it's been scheduled. This feature allows you to schedule an inspection with placeholder contact data and then be edited after.
In order to edit your inspection follow these steps:
Access the detailed view of the inspection you need to edit
Navigate/scroll to the Contacts section of the inspection
Click/tap the blue Edit button
From this screen you can edit and even add more contacts
Click the green Done button to save the changes you've made