It gets asked during arguments. Another practice rings to say they never received anything, and somebody goes digging through a fax account to prove otherwise. That search is the whole job, and it can take an afternoon.
A record, not a queue
Outbound in Cync is a record. Nobody works it, nothing ages, and no row turns amber because a specialist has not written back. A referral you sent sixty days ago with nothing back is the ordinary state of the world. Putting a warning on it would only ask a coordinator to chase something no button on the page can fix.
Each row carries what Cync can confirm, and nothing beyond it. Sent is always true: we hold the copy, the timestamp and the destination. Delivered appears when the receiving practice is on Cync, because then the number maps to a real practice and delivery is knowledge rather than an inference from a transmission receipt. Report received appears when a consult note comes back and matches.
Practice to practice is the interesting case
When the practice you referred to also runs Cync, the outcome comes back with the record: booked, declined, or unable to reach, with its date. That is what a closure notice would have carried anyway.
It stops there. You see the outcome of your referral, not how another practice works it, who they assigned it to, or what they wrote in their notes.
Everything is searchable by patient, by destination and by the date it went out, which is how a dispute arrives in the first place.