Scenario 3 is for when you've already been out on a job, and need to schedule a return/completion visit (typically because of having ordered parts, based on a diagnosis as made on the first visit).
Once again, ServiceDesk quasi-automatically creates and sends an email to your consumer. It's configured a bit differently for this situation, as follows:
Dear Sir or
Madam:
We have received parts as needed for the following repair:
Job # 72851, ROOMBA CENT VAC
JETSON, JANE
123 SKY HIGH LANE
UTOPIA, CA 92629
949-515-1555 949-516-5656 949-518-6565
We need to make an appointment with you, so our technician can complete this
repair. If you'll simply click on the following link:
http://sched.rossware.net/?c_id=1001&LinkID=728510753
It will take you to a page on our website, where you can schedule this visit.
If unable to schedule via that link, please call us at 360-427-6000.
As in Scenario 2, the consumer receives the email, clicks the link, and is taken to an interface on your website that's specifically configured for this situation.
Please, test again: pretend you're the consumer who's received the email, and click on the link.