Selling is tied to where it happens. Every street carries its own reputation, and a successful deal raises it, so the player can move larger quantities of that drug and eventually unlock types that were closed to them. The current standing on every street is saved to the database automatically each time the interface is opened.

Prices move on their own. When a drug is sold often, its value drops for everyone on the server, which pushes players to spread out rather than grind one product on one corner. Selling to the same ped twice is blocked, and the config holds a list of places where nothing can be sold at all.

Deals are not risk free. A ped can report the attempt, which drops a blip for the police, and the player can pull out mid sale by pressing G. The camera zooms onto the ped while the deal runs. Adding your own drugs is a config edit rather than a coding job, and the resource idles at 0.0 ms.