Today that sentence is a phone call somebody has to remember to make, at the end of a day that had forty other things in it. It is nobody's fault that it does not happen. It is simply the last item on a list that never ends.
What Cync sends
The moment a referral is booked, Cync sends the practice that referred the patient a closure notice: who the patient is, when they are coming in, and the fact that it is on the schedule. It goes by fax or by email, whichever they used to reach you.
They need no account and no login. They keep faxing exactly as they do today, and something comes back.
Why it matters more than it sounds
Referral relationships run on the last thing that happened. A practice that hears back sends more, and a practice that hears nothing starts quietly sending elsewhere, usually without ever saying so.
A closure notice is also the only proof either side has that the handoff finished. When it arrives automatically, on every referral, nobody has to keep a list of who is still owed an answer. The referrals you send deserve the same answer back, which is why outbound is a record in Cync.
It is one page. It ends the loop.