E-commerce Product Sourcing: Finding a Real Supplier

The hardest part of sourcing is not finding companies willing to sell you something. It is working out which of them actually makes the thing. Search for almost any product category and you will find hundreds of websites with factory photography, capability lists and confident language about production capacity — and a large share of them are intermediaries: trading companies, agents, wholesalers, or one person with a laptop and a relationship with a real plant.

That is not automatically bad. Intermediaries do real work and there are situations where using one is the correct decision. But you need to know which you are dealing with, because it changes everything downstream: your price floor, your minimum order, your lead time, who fixes a quality problem, whether you can get lot-level documentation, and — in a regulated category like food — who can actually answer a question that a customs officer or a marketplace compliance team asks you.

This guide is the qualification process, written by a manufacturer. It covers how to tell the difference, what to ask, what documents to request, how to run a sample round that tells you something, how to structure a first order that limits your exposure, and what a factory walkthrough should show you.

The five kinds of "supplier"

• Manufacturer. Owns or operates the production line. Can tell you the machine, the throughput, the run size that suits it and the one that does not. Controls the specification.
• Trading company / export agent. Buys from one or several factories and sells to you. Often genuinely useful: consolidates multiple product lines, handles export documentation, speaks your language, absorbs small-order friction. Adds a margin and a layer between you and the truth.
• Wholesaler / distributor. Holds finished stock, sells in cases. Fast, low minimums, no customisation, no private label unless they relabel someone else's product.
• Marketplace listing. A B2B platform profile that may be any of the above. The profile badge tells you about the platform's verification process, not about the production line.
• Dropship or print-on-demand aggregator. No inventory risk for you, no differentiation either, and in food categories it is rarely viable because of shelf life and labelling responsibility.

When is an intermediary the right choice? When you need many different products in small quantities from one point of contact, when the export paperwork is beyond you, or when the actual factory genuinely will not deal with your volume. When is it the wrong choice? When you are private-labelling, when you need specification control, when you need traceability documents on demand, or when margin is tight enough that one extra layer decides whether the product works at all.

The qualification conversation

You do not need to interrogate anyone. You need to ask specific questions and listen to the shape of the answer. A manufacturer answers with constraints — numbers, limits, "we cannot do that, here is why". A reseller answers with reassurance. Vagueness is the signal; enthusiasm is often the tell.

Two structural checks are worth running alongside the conversation. First, ask for the legal entity name and registration number, and see whether it matches the bank details, the certificates and the domain registration. Mismatches are common and each one deserves an explanation. Second, ask a question you already know the answer to from your own research — a technical constraint in the category. Somebody who makes the product will correct you when you are wrong.

Documents to request, and what each one proves

Ask for these before you place any order. A supplier's willingness to produce them quickly is itself part of the assessment.

• Specification sheet. The product defined in writing: composition or recipe with percentages, physical parameters, unit weight and tolerance, packaging format, count per box and per carton, shelf life, storage conditions. This is the document you approve, and the one you refer back to when a later delivery differs. No spec sheet, no order.
• Certificate of Analysis (CoA), per batch. Laboratory results for the specific lot you are buying — not a generic sample from last year. It should identify the lot, the test date, the laboratory and the parameters relevant to the product. Learning to read one properly is a genuine skill; our guide on how to read a CoA walks through what the parameters mean and which absences matter.
• Allergen statement. A declaration of allergens present in the product and of what else runs on the same line, with the cross-contamination controls. In the EU, allergen information on the consumer label is mandatory under Regulation (EU) No 1169/2011, and you cannot write that label accurately without this document. Ask specifically about shared lines — "no allergens in the recipe" is not the same answer.
• Certification certificates with scope. Not logos: the actual certificates, with the certified site, the scope of activities, the issuing body and validity dates. If your market or your retail customer requires a specific standard — organic, or a particular food safety scheme — verify that the certificate covers the site and the product category you are buying, not a different plant in the group.
• Additive and treatment declaration. For dried fruit, the sulphite question is the classic example, and it has direct labelling consequences: see sulphites and sorbates in dried fruit labelling.
• Traceability and lot procedure. How lots are numbered, what a lot number connects to upstream, and how long records are kept.
• Packaging specification and dieline. If they are printing your boxes, you need the artwork template before your designer starts, not after.

Running a sample round that actually tells you something

Samples are cheap information and most first-time buyers waste them. The pattern that works:

Pay for samples. Free-sample requests get the marketing sample. Paid requests get treated as an order, which is what you want, because you are testing the process as much as the product.

Round one tests the product. Ask for it in the format you intend to sell, not in a plain bag, and ask for the corresponding CoA so you can practise reading it against something real. Evaluate it against your written brief, ideally alongside two competitor products bought at retail. Taste, appearance, aroma, and — for food — how it behaves after the packaging is opened.

Write feedback in the supplier's language. "Not quite right" costs you an entire extra round. "Coarser cut, less liquorice, more citrus peel, darker infusion" is actionable. Our note on B2B sample order best practices covers how to structure the request so the first round is useful.

Round two tests the finished unit. Approved recipe, real bag or pouch format, mock-up of the label or tag. This is what your customer receives; approve that, not just the contents.

Keep a retention sample. Seal one unit from each round, label it with the date and the version, and keep it. When a production delivery arrives twelve months later and something feels different, the retention sample is the only objective reference you will have.

Sample turnaround is data. A supplier who takes six weeks to send a sample will not take two weeks to fix a production problem.

Structuring a first order so a mistake stays small

The goal of the first order is not the best unit price. It is to buy the smallest quantity that a real production line will run, so you learn how this supplier behaves under a real purchase order.

• Order at their genuine entry tier, not above it. A better price per unit on a quantity you cannot sell is not a saving; it is shelf life you are paying for. Understand what drives the minimum in your category — for tea bags we set out the arithmetic in our MOQ and lead time guide.
• Split across SKUs rather than betting on one. Two or three variants at the entry tier each teaches you what sells; one large run teaches you nothing until it is too late.
• Sign the specification before the purchase order. Version-numbered, both sides holding a copy.
• Fix the delivery term explicitly. EXW, FCA, FOB, CPT, DAP and DDP allocate transport cost, risk transfer and customs duties very differently, and a "price" without an Incoterm is not a price. Our Incoterms guide for natural products explains what each one commits you to.
• Agree the inspection point. Whether you or a third party inspects, and whether it happens before shipment or on arrival. Before shipment is far cheaper to act on.
• Agree the remedy in advance. What happens if the goods are off-specification, short-shipped or late. A supplier who will discuss this calmly before there is a problem is the one you want.
• Confirm labelling responsibility in writing. In the EU the food business operator whose name is on the pack carries the legal responsibility for label accuracy. That is you. The factory prints what you approve.

Payment terms without getting burned

Payment terms are negotiable and they are also a risk instrument. The basics:

A deposit plus balance split is normal. Something like a deposit on order confirmation and the balance against shipping documents is a common structure for a new relationship. The deposit exists because the supplier is buying raw material and packaging for your specification, which they cannot sell to anyone else.

One hundred percent in advance to a supplier you have never dealt with is the position to avoid. If a supplier will not move off it at all, that is information.

Bank transfer to a company account in the company's own name, in the company's own country. Payment requested to a personal account, to a third-party company, or to an account in an unrelated jurisdiction is a stop signal, not a quirk.

Treat any mid-order change of bank details as fraud until proven otherwise. Invoice interception is a well-known attack on international trade. Verify new details by voice on a number you already had, never on a number contained in the email that announced the change.

Escrow and letters of credit exist for larger orders. They cost money and paperwork, which is why they are rarely worth it at first-order volumes — but knowing they exist changes how you negotiate.

Terms improve with history. Ask for better terms on the third order, not the first.

What a factory audit or video walkthrough should show

A third-party audit is the rigorous option. A live video walkthrough is the accessible one, and it is far more informative than most buyers expect — provided it is live and you get to direct it. Recorded footage proves nothing; ask them to hold up today's newspaper equivalent, or simply ask them to walk somewhere you name.

What you want to see, and what it tells you:

• The production line running your product category — not a still room. Watch a machine actually operating, and ask what its throughput is while you are watching it.
• Raw material intake and quarantine. Is incoming material segregated and labelled with lot identifiers before it is released for use?
• Storage conditions. Pallets off the floor, away from walls, dated, with visible lot markings. Pest control stations. Temperature and humidity control where the product needs it.
• Packaging material storage. Kept separately and cleanly, not stacked in the same space as raw material or waste.
• Personnel hygiene practice. Not the sign on the wall — the actual behaviour of the people you can see.
• The QC area. Where in-process checks happen, what records are being written, and by whom.
• The document trail. Ask to see a lot record chosen at random and follow it: finished lot number, back to raw material batches, forward to the release record. This single request separates real systems from theatre faster than anything else on the list.
• Ask to see something imperfect. A supplier who shows you the hold area and explains how non-conforming material is handled is more credible than one whose facility appears to have never produced a defect.

Red flags, ranked by how much they should worry you

Stop immediately: payment to a personal account; bank details changed by email mid-order; refusal to provide a written specification; certificates in another company's name; refusal of any form of site visit or live walkthrough.

Slow down and verify: capacity described only in adjectives; a minimum order that collapses under mild pressure; a single CoA reused for every batch; no answer on allergen cross-contamination; lead times that never change regardless of volume; a website whose factory photographs appear elsewhere in a reverse image search.

Note it, but keep talking: slow email; imperfect English; a genuine "no, we cannot do that" — which is usually a good sign; an intermediary who is upfront about being one.

And one specific to regulated categories: a supplier who offers you marketing copy about health effects is a red flag about their compliance culture, not a value-add. Nutrition and health claims on food are governed in the EU by Regulation (EC) No 1924/2006, and only authorised claims may be used. A manufacturer who hands you a paragraph about detoxification or immunity either does not know the rules or does not care that the liability lands on you, the brand owner. Sell taste, origin, format and quality instead — and if you are still at the stage of deciding whether to build a brand at all, our step-by-step guide for first-time founders covers the capital and timeline reality before you commit.

A note on where we sit

Since this article is about telling manufacturers from resellers, it is fair to state our own position plainly. Arovela manufactures: tea bag packing at roughly 1,000 bags per hour in Sındırgı, Balıkesir, with a warehouse in Solingen, Germany, serving the EU and Ukraine. We run single-chamber, string-and-tag and enveloped bags — not double-chamber — and offer packing-only, blend development or full service including outer boxes and label printing. Entry runs are 5,000–20,000 bags per SKU in 2–4 weeks; 50,000–100,000 takes 4–6 weeks. On the dried fruit side we run geothermal drying with slice, cube, granulate, powder and purée formats and doypack retail packaging. Our certifications are ISO 22000, ISO 9001 and ISO 27001, and we list only what we hold. If you want the long-form version of the evaluation criteria applied to our own category, see our guides to choosing a private label tea bag manufacturer and a private label dried fruit manufacturer.

FAQ

How can I tell if a supplier is a manufacturer or a trading company?

Ask questions that only a production line can answer: the throughput of the specific machine that would run your job, what limits the minimum order, which variants they cannot produce, and what happens physically when a batch fails specification. Manufacturers answer with numbers and constraints; intermediaries answer with reassurance. Then verify structurally — legal entity name matching the certificates and the bank account, a real site address, and a live video walkthrough where you direct where the camera goes.

Is it always wrong to buy through a trading company?

No. If you need small quantities of many different products, or the export paperwork is genuinely beyond you, or the real factory will not engage at your volume, an intermediary earns its margin. It becomes the wrong choice when you are private-labelling, when you need specification control and per-batch documentation, or when the extra layer decides whether your unit economics work. The mistake is not using an intermediary; it is not knowing that you are.

What documents should I have before placing a first order?

A version-numbered specification sheet, a batch Certificate of Analysis for the sample you approved, an allergen statement covering both the recipe and shared production lines, any certification certificates with their scope and validity, a treatment or additive declaration where relevant, and a description of the lot numbering and traceability procedure. In the EU, remember that responsibility for the accuracy of consumer label information sits with the food business operator named on the pack, so you need these documents for your own file, not just for reassurance.

How small should my first order be?

As small as a real production line will genuinely run, and no larger. The purpose of the first order is to observe how the supplier performs under a real purchase order — communication, documentation, timing, and whether the delivery matches the approved specification. Better unit pricing on a larger quantity is only a saving if you sell it inside its shelf life.

What payment terms are reasonable for a first-time buyer?

A deposit on order confirmation with the balance against shipping documents is a common structure for a new relationship, and the deposit is legitimate because the supplier commits raw material and packaging to your specification. Pay by bank transfer to a company account in the supplier's own registered name. Never accept a mid-order change of bank details without verifying by voice on a number you already held, and expect terms to improve as the relationship builds rather than on the first order.

If you would like to run this checklist against us, request a quote with your product, target volume per SKU, packaging format and delivery country — and ask for the specification sheet and documentation list at the same time, so you can judge the answers rather than the sales pitch.