The Notify Me button records your interest in a Marketplace search, but it does not guarantee an alert for every new match or promise a delivery schedule. Its silence can feel broken even when your settings are correct. Treat it as a free bonus channel, then use independent monitoring for searches where speed matters.
What the button actually does
Marketplace surfaces a Notify Me (or save-search) toggle on searches, and buyers reasonably read it as "ping me when something new matches." Facebook does not publish a commitment to alert on every matching listing or deliver alerts within a fixed time. That is the boundary buyers can verify.
That gap between the promise the button implies and the commitment it makes is the entire experience of "Notify Me not working": the toggle is on, the listing appeared, and your phone stayed dark.
The scenario every flipper knows
A buyer watches for a specific model of car. Notify Me is on, settings are correct, and the phone test confirms pushes arrive. On Tuesday a clean example posts twenty minutes from their house, priced well under market. The first alert about it never comes. They find the listing that evening by scrolling manually, marked pending, sold to whoever saw it first.
The settings check found no obvious error. Facebook provides no audit trail explaining why that particular alert did not arrive.
Why it happens (what we know and what we do not)
Being honest about the mechanism matters because many articles state exact delay windows and throttle rates as fact. Facebook does not publish those numbers. What can be said with confidence:
- Facebook publishes no per-listing delivery or timing guarantee.
- Correct Facebook and phone settings remove fixable failures (checklist here), but they do not create a service commitment.
- A narrow saved search is easier to review and test than a broad one. That is workflow advice, not a claim that Facebook delivers it faster.
- An end-to-end test can reveal what happened for one listing and account. It cannot prove future delivery.
What to do about it
Three moves, in order of effort:
- Narrow the search. Split broad intents into several tight searches so every alert is relevant and the test is easy to judge (setup guide).
- Test, then trust accordingly. Post or have a friend post a matching listing. If the alert arrives quickly and repeatedly, lean on it for that search. If not, you have your answer.
- Add independent coverage for searches with money on the line. Crawlbench uses a 10-minute fan-out, subject to profile cadence and rotating anchor-city coverage. It consistently evaluates each listing it retrieves and shows why a match passed (features). Retrieval can still omit listings, so this is scheduled monitoring, not a complete or instant feed.
Vehicle flippers considering a desktop alert agent can review CarSnipe alternatives before choosing a watcher.
The takeaway
Treat Notify Me as a free bonus channel, not a commitment. Leave it on, but do not confuse a saved preference with guaranteed coverage. For a search where missed listings cost money, test the native alert and decide whether you need an independent watcher beside it.