Resources who have been invited into Invoxy are able to update their basic details from their account, as shown here.
When a resource updates their details you'll see a notification on your dashboard:
Under Manage > People the resource will also have an orange dot indicating they have changes that need reviewing:
Finally, on their record you'll see an orange dot beside any values they've changed. You can hover your mouse over the indicator to see what value the record was changed from (however, if the value was changed from being blank there will be no pop up):
To approve the changes the candidate has made, click Save. Alternatively, you can set the displayed value back to what it was and click Save to change it back.
Until you save the changes the candidate has made they'll be visual only - Invoxy will still have the original details stored as the correct details, not what the candidate has entered.