The key notion is to choose a product with stable and high demand. The mechanism of sales relies mainly on a search algorithm and a user usually sites with a clear idea of what to purchase. Goods should be of decent quality. Even if there is one product-one supplier system on a platform, consumers can always compare products from other online environments.
Among the most profitable categories for marketplaces, experts name automobile items, toys, mobile phones, tablets, food, hand-made.