How to choose a supplier for an online store: types of suppliers, selection criteria, step-by-step verification, cost price calculation and connection to the website.
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A supplier for an online store is chosen by comparing a shortlist on reliability of stock, wholesale terms, logistics, quality of data for the website, return rules and the legal side of the cooperation. The final decision is made after a trial order, which shows the real lead times, packaging and quality of communication. This reduces the risk of failures after the ads go live.
The type of partner determines the price, speed and degree of control over the order. The table shows the main options.
| Type | Advantages | Risks | Who it suits |
|---|---|---|---|
| Manufacturer | Lower purchase price, direct terms, consistent quality | Minimum batches, longer cycle, volume requirements | Stores with large volumes or their own private label |
| Official distributor | Warranty obligations, documents, brand support | Price and territory restrictions, strict terms | Stores selling branded products |
| Wholesale warehouse | Wide assortment, fast shipping, small batches | The same prices for all competitors, dependence on stock levels | Stores with a large catalog |
| Dropshipping platform | Minimal capital, shipping from someone else's warehouse | Less control, lower margin, dependence on someone else's stock | Testing a niche and starting with a small budget |
| Importer or purchasing abroad | Unique assortment, potentially higher margin | Longer lead times, customs and currency issues, quality risks | Experienced stores with a reserve of working capital |
A store often combines types: core items come from a warehouse, branded ones from a distributor, its own bundles from a manufacturer. This setup spreads the risks and leaves room to maneuver.
Each candidate is assessed against the same set of criteria so that the comparison is fair.
Make a table and rate each candidate on a simple scale. Document requirements depend on the product category and change over time, so check them with a lawyer.
The value of a trial order is that it reproduces the customer's path from confirmation to receiving the parcel. The result is recorded in the same table as the selection criteria.
The purchase price does not yet show the real profit. The full cost price of a unit of goods consists of the following elements:
Markup and margin are different values: markup is calculated from the cost price and margin from the selling price, so the same percentages give different results. Compare suppliers by profit per order after all costs.
After choosing a supplier, set up data exchange.
The first agreements set the tone for the entire working relationship, so they are discussed in advance and put in writing.
Start with a pilot volume and agree on large purchases after the first successful shipments. Record verbal promises in your correspondence too, so that you have evidence in case of a dispute.
With dropshipping, the supplier ships the goods, and the store remains responsible to the customer. So before you start, clarify a few questions: how quickly stock levels are updated, whether the supplier ships on behalf of your store, how returns are handled and who bears the cost of return shipping. Lead times and packaging quality become part of your service, even though you do not control them directly. To reduce the risk, start with a limited assortment, test shipments and keep realistic lead times on the website.
When there are several suppliers, you need a single accounting system: SKUs, product matching, markup rules and the priority source for each item. If two suppliers have the same product, the website shows the better option by availability, lead time and price. Duplicate items are merged into one product page to avoid copies. Regularly compare the metrics (cancellation rate, average shipping time, number of complaints) and redistribute the volumes.
To avoid selling goods that are not available, keep a buffer: the website shows one unit less than the supplier has, or takes the item off sale when stock falls below a threshold. The feed update time is taken into account in the rules: if the update happens once a day, popular items risk being sold twice.
For example, the purchase price of a product is 100 conventional units, delivery from the supplier is 5, packaging is 3, the payment system commission is 2 and the reserve for returns and defects is 4. The full cost price is 114. If the price on the website is 150, the profit before advertising is 36, and after the share of advertising costs less will remain. A second supplier offers a purchase price of 95, but ships on the fifth day and more often has stock discrepancies; its low price can turn into canceled orders. All numbers are hypothetical and only show the order of the calculation.
One or two main suppliers and a backup for key items are usually enough. The number depends on the assortment and order volume.
Dropshipping requires less capital and gives less control; your own warehouse gives control and requires working capital. Many stores combine both approaches.
At industry trade shows, in wholesaler catalogs, on manufacturers' websites and B2B platforms, through recommendations from colleagues in your niche and through Google search with queries such as buy wholesale plus the product name.
Yes, especially regarding prices, deadlines, returns, defects and warranty. Agree on the wording with a lawyer, because the rules change.
Notify your customers, change the item's status on the website, redirect orders to the backup supplier and review the terms of cooperation.
The supplier determines whether the store can keep the promises made on its website: availability, lead times, quality and returns. That is why the choice is built on a short list of criteria, document checks and a trial order, and the economics are calculated with all costs included. The supplier's data is added to the website so that the buyer sees up-to-date stock levels. Regularly review the metrics – the share of orders shipped on time, the number of complaints and cases of defects – so that you can replace a weak partner in time. If you need help building such a store, the LightSEO team from Mukachevo can help with a solution for your niche and the development and launch of an online store.
