What Is E-Commerce? Models and Ways to Start

E-commerce is a form of buying and selling in which the order for goods or services is placed through a website, app, marketplace or other computer network built for that purpose. That is the official answer to "what is e-commerce"; the everyday decisions hide in the details.

Payment by card and digital delivery of the product are not mandatory. A physical product ordered on a website, paid in cash at the door and brought by courier is also e-commerce. Merely seeing an ad on a social network, however, is not yet an order.

The distinction looks small, but it changes the business model. E-commerce is not "opening a website"; it is an interconnected system from order intake to payment, from stock to delivery, from support to repeat purchase.

What is e-commerce — and what is not?

The core marker of e-commerce is the parties placing the order over a computer network, through a method built for receiving orders. The OECD's framework updated in 2025 keeps the previous definition's core and refines the interpretation for digital intermediaries, subscriptions and artificial intelligence (AI)-assisted orders.

According to the OECD's explanation, payment and final delivery need not be online. Hand-written email, phone calls and simple messaging are usually excluded from the statistical definition. The situation changes if the social platform has a product catalogue, an order form and dedicated commerce features.

Are e-commerce and digital trade the same?

Not exactly. E-commerce looks at the ordering method. Digital trade is a broader concept and can cover international transactions that are digitally ordered or digitally delivered. In a practical business decision, the first question is simple: where, and under which rules, does the buyer confirm the order?

How are e-commerce models divided by who sells to whom?

This classification shows the transaction's parties. B2C, B2B and C2C explain who sells to whom — not the store's platform or stocking method.

One business can work in several relationships at once. For example, a manufacturer can sell B2C to individual buyers on its own site and B2B to a wholesale partner. If the price, minimum order, tax documents, support and delivery rules differ, squeezing the two flows into one form creates confusion later.

What are the stock and fulfilment models?

The fulfilment model shows who owns the product, who prepares it after the order and who carries the risk. There is no "easiest" path here; only the location of the obligation changes.

In the dropshipping model, even though the store does not ship from its own warehouse, the promise made to the customer does not disappear. When the wrong product arrives, the buyer who does not know the supplier knows the store. That is why low stock cost does not mean low responsibility.

Your own store, a marketplace, or social selling?

The sales channel determines where the buyer places the order. Your own store, a marketplace and a social platform are not separate business models; the same product and fulfilment model can be sold through different channels.

Selling on Instagram can be useful for testing initial interest and the product's language. When order volume grows, writing the same questions to every customer, copying addresses from messages into spreadsheets and recognising payments manually becomes hidden work. A ready store system like Shopify standardises part of that flow, but local payments, language, tax, delivery and the full cost must be checked separately.

How is income calculated in e-commerce?

One order's sale price does not fully answer the income question. After subtracting the cost of goods, packaging, payment fees, the business's share of delivery, a returns reserve and customer acquisition cost, the contribution margin remains.

In an illustrative example, from a 49 AZN sale: 18 AZN product, 1.50 AZN packaging, 0.98 AZN payment cost, 4 AZN delivery subsidy, 2.50 AZN returns reserve and 8 AZN advertising are deducted. The order keeps 14.02 AZN. If monthly fixed costs are 420 AZN, roughly 30 such orders are needed just to cover them.

These figures are not market prices; they are a calculation example. Write the actual numbers for your own store. A product description can help turn views into sales, but it does not fix a weak margin with words. E-commerce marketing should also be scaled only when the customer acquisition cost fits within the order's remaining value.

How do you start e-commerce in Azerbaijan?

Beyond the product, starting in Azerbaijan covers entrepreneurship, tax, seller information, contracts, consumer rights, personal data, payment and delivery rules. The State Tax Service's tax guide is the current official starting point for registration and choosing a taxation regime.

The Law "On Electronic Commerce" creates a framework requiring the seller's name, address, contact details and TIN, the product's main characteristics, price, tax, delivery, payment and withdrawal terms to be shown before the order. Consumer rights and product exceptions must be checked separately; writing the same timeframe on all returns is not correct.

If names, phones, addresses, orders and behavioural data are collected, the purpose, legal basis or consent, data access, retention, transfer and deletion rules must comply with the Law "On Personal Data". Clarify the concrete application with a lawyer. When choosing a payment partner, verify the legal entity and its permitted activity in the Central Bank of Azerbaijan's current register.

What is the technical minimum?

A mobile site whose products are reachable through ordinary links, HTTPS, stable stock and prices, working order confirmation, payment error recovery, role-based admin access, backups and analytics are the minimum. Google's e-commerce structure guidance emphasises clear links from the menu to categories and products; a product found only through internal search may be poorly visible.

Do not treat online payment as finished with a successful transaction. Declined payments, duplicate notifications, cancellations and refunds must reconcile with orders. And test the delivery partner not only with the tariff but with the incomplete-address, unreachable-buyer, damaged-parcel and return scenarios.

How should AI be used in the product catalogue?

AI can help group product data, prepare draft descriptions and find empty fields. But the dimensions, materials, stock, price, compatibility, warranty and safety claims must come from a verified source. Google's current guidance on generative AI content does not ban the tool itself; creating many pages without added user value can trigger violations of the search spam policies.

For the store's full structure from product to order and from payment to returns, use the guide to opening an online store. This article deepens the model choice; that guide the execution sequence.

A 14-day trial to start e-commerce

The first trial's purpose is not building a big store but seeing one product work end to end after the order. Instead of dozens of categories, pick one buyer group, one problem, one offer and a small number of products.

1. Days 1–2: write down the buyer, the product, the B2C/B2B relationship and the fulfilment model.
2. Days 3–4: calculate the price, contribution margin, minimum orders and the stop threshold.
3. Days 5–7: prepare the seller, tax, sales, privacy, payment and returns rules.
4. Days 8–10: build the product page, order, stock, notification and analytics flow.
5. Days 11–12: place trial orders — ordinary, with a failed payment, cancelled and returned.
6. Days 13–14: with limited real traffic, record the margin, errors, support time and buyer questions.

At the trial's end, "we made a sale" is not enough. How much money stayed from the order, which step was done by hand, where did the buyer hesitate, and can the same work repeat ten times? The go decision should come from those four answers.

Conclusion: name the model, then build the system

E-commerce does not begin and end with showing products on the internet. Who sells to whom, who holds the product, where the order is placed and how much value one sale leaves must each be written down.

When these four decisions are clear, platform choice becomes simple. When they are not, a beautiful storefront hides a messy operation for a while. Make the sale work end to end in a small trial; then expand the channel and the catalogue.