Apakah bisa untuk membeli barang dari grosir dan menjualnya di Allegro, tetapi memberikan keuntungan Anda sendiri?

If I understand correctly, you just want to be an intermediary between the wholesaler and the customer. This is real, but keep in mind that a lot of people do it, and the wholesalers themselves have also entered e-commerce (maybe not all of them, you'd have to do some research here), so you won't be able to offer a better price than them. You have to bear the costs of commission and possible complaints, and this last point is one big unknown. Will you take the repair/replacement on yourself in that case? Will you try to argue with the wholesaler? You need to think this matter through carefully, because the margin on the product may turn out to be too small to cover such losses and leave you a satisfactory profit.

Classic dropshipping removes issues related to complaints and spending money on goods in advance, but as everywhere, something for something - you will earn less in this case, because 99% you will not receive purchase discounts that are available to companies buying a large batch of goods at once or in the annual settlement.

It really all depends on what you are going to trade and the margin you can make on that particular product. There are industries where it is already crowded or margins are very small, for example, clothes, children's toys or electronics. You probably won't be able to beat them, and advertising funds will eat up any profits, because large stores will always be higher in search engines. Unless you're counting on a golden shot like entering Allegro with the lowest price of a given product, selling a few hundred pieces before the competition reacts and that's it.

In this case, you would have to calculate the costs very well, because Allegro is crazy about commissions, fees and other charges. You have to read their fee tables carefully, but it will still be difficult to know the final amount of charges, because some costs are deducted in specific cases, and in others not.

On the other hand, an Allegro account is the fastest way to start selling (especially when you already have one and can turn it into a company one), there are no costs of external advertising and setting up an online store, etc. A certain problem may be the lack of sales history and buyers' opinions. It would be good to offer more items, because then you have a chance to increase the value of sales and (in the case of cheaper products) some customers could take advantage of free Smart shipments, which start from PLN 40.

In my opinion, ecommerce is very future-proof and, as the recent pandemic situation has shown, resistant to possible business closures. You don't have to limit yourself to customers from Poland, which can also be a plus, but at the beginning it's best to focus on the domestic market. You have to get the first cuts and suffer the first failures before you go out into the world :) So if checking the warehouse and calculating the possible margin is a plus, if I were you, I would try it, but without throwing yourself into deep water and without buying a large amount of the product. In the event of failure, it is better not to stay with goods in which money is frozen, especially when it is seasonal (for example, barbecue items or decorations), so be guided in this regard by reason, not emotions and the vision of possible large earnings.