You can make updates to goals which include:
Updating the 'name'
Adding or changing an 'image'
Updating the 'price' of the Goal
To make a change to a goal:
Navigate to your child's 'Goals' dashboard
click on the goal they'd like to make a change to
Tap on 'Edit' in the top right corner
From there, you can make the changes you need
Click 'Save' when you've finished