Facebook Marketplace now reaches over over 1 billion shoppers a month, and a growing share of them are looking for exactly what an independent retailer already stocks. The problem isn’t demand, it’s that most retailers selling there are still doing it by hand: re-listing products one at a time, updating stock counts manually, and losing track of which order came from where. RealtimePOS’ guide to Facebook Marketplace integration exists because that manual approach breaks down fast once you’re running more than a handful of listings. This guide covers what Facebook Marketplace integration actually does, how the connection works under the hood,