Facebook intros Marketplace for Android and iOS, wants you to buy and sell stuff within the app
With Marketplace, Facebook adds a completely separate tab where people can discover, buy and sell items with people in their communities. The new feature should make it easier for users to find the things they need or buyers for stuff they don't need anymore. Marketplace will debut on Android and iOS with several options, but more will be added in the coming months.
Another important benefit is the fact that you will be able to filter products by categories such as Household, Electronics and Apparel. If you enable the geo location feature on your smartphone, you will be able to adjust the region you're looking in, or switch to a completely different region.
Each item should contain details about the seller, aside from its description. Obviously, if you haven't yet decided to purchase a product, you can save it so you can find it easier next time. Once you find something that you want to buy, simply send a message to the seller within the application and wait for a reply.
However, keep in mind that while Facebook Marketplace allows you to find the stuff you need or sell what you want to get rid of, it will not facilitate the payment or delivery of the items listed.
It's also worth mentioning that Facebook confirmed Marketplace will be available on the desktop in the coming months, and that the feature will be expanded to additional countries in the months to come.
source: Facebook
Things that are NOT allowed: