I wanna start dropshipping with my friends on ebay, I see that there are some differences in dropshipping on sites already exposed like ebay or amazon and making my own store, the first have no cost for advertising and building (the store itself), just the reviews that we already have. On the other hand having an online store and advertising it can make it more know by people and more people would buy it, instead on ebay/amazon I should be lucky that someone sees my products, I can't advertise them.
However, I'm curious, how do you guys organize the business in practical terms? for instance if you have hundreds of products, when you receive an order from a customer, how do you find the correspondant product to dropship, on, say, aliexpress, dx.com etc. ?
other than that, if you guys have other suggestions feel free to tell me, I'm open to advice from people experienced in this field.