NTN ECOMM study materials
NTN ECOMM study resources

NTN ECOMM key terms

NTN ECOMM · Get comfortable with the vocabulary.

Business-to-consumer (B2C)

A business model in which a company sells products or services directly to individual consumers rather than to other businesses, typically through a website, mobile app, or marketplace.

Related: Online marketplace, Dropshipping
Online marketplace

A platform where many independent sellers list products and buyers purchase from them in one place, with the operator usually handling discovery, payments, and sometimes fulfillment on the sellers' behalf.

Related: Business-to-consumer (B2C), Gross merchandise value (GMV)
Dropshipping

A fulfillment arrangement in which the seller takes the order and payment but a third-party supplier ships the product directly to the customer, so the seller holds little or no inventory.

Related: Online marketplace, Backorder
Subscription commerce

A model where customers pay on a recurring schedule, such as monthly, to receive ongoing products or access to a service, generating predictable repeat revenue instead of one-off purchases.

Related: Churn rate
Omnichannel commerce

An approach that connects a retailer's website, mobile app, physical stores, and service channels so customers can browse, buy, return, and get help through any of them without losing context.

Related: Ship-from-store, Business-to-consumer (B2C)
Checkout flow

The sequence of pages and steps a shopper completes to confirm a basket, enter delivery and payment details, review the total, and place an order.

Related: Cart abandonment, Payment gateway
Cart abandonment

When a shopper adds items to a basket but leaves the site before completing the purchase, measured as the share of started checkouts that never become orders.

Related: Checkout flow, Abandoned cart email
Headless commerce

An architecture that separates the customer-facing storefront from the back-end commerce engine, letting teams change the front-end experience without rebuilding catalog, pricing, and order systems.

Related: Content management system (CMS)
Content management system (CMS)

Software used to create, edit, organize, and publish website content such as pages, banners, and articles without requiring hand-coded HTML.

Related: Headless commerce, Product information management (PIM)
Search engine optimization (SEO)

Practices that improve how well a site's pages rank in unpaid search results, including keyword research, page structure, technical speed, and earning links from other sites.

Related: Conversion rate
Cost per acquisition (CPA)

The average marketing cost required to win one new customer or one conversion, calculated by dividing total campaign spend by the number of acquisitions it produced.

Related: Return on ad spend (ROAS), Customer lifetime value (CLV)
Return on ad spend (ROAS)

Revenue generated for every unit of currency spent on advertising, calculated by dividing campaign revenue by campaign cost.

Related: Cost per acquisition (CPA), Attribution
Retargeting

Showing ads to people who previously visited a site or interacted with a brand, aiming to bring them back to finish a purchase or take another action.

Related: Cart abandonment, Attribution
Abandoned cart email

An automated message sent to a shopper who left items in a basket without buying, usually reminding them of the contents and offering help or an incentive.

Related: Cart abandonment, Retargeting
Merchandising

The practice of selecting, arranging, and presenting products so shoppers find what they want and buy more, covering category structure, ranking, imagery, and on-site placement.

Related: Cross-sell, Product information management (PIM)
Price elasticity of demand

A measure of how much the quantity sold changes when price changes; elastic products lose many sales from a small increase, while inelastic ones lose few.

Related: Dynamic pricing
Dynamic pricing

Adjusting prices in response to live signals such as demand, competitor prices, inventory levels, or customer segment, often automated through rules or algorithms.

Related: Price elasticity of demand
Upsell

Encouraging a shopper to choose a higher-priced or upgraded version of the item they are considering, increasing revenue per order.

Related: Cross-sell, Average order value (AOV)
Cross-sell

Recommending related or complementary products on the product page, in the basket, or at checkout to increase the number of items in an order.

Related: Upsell, Merchandising
Product information management (PIM)

A system that stores and governs product data such as titles, attributes, images, and descriptions, so accurate and consistent content can be published to every sales channel.

Related: Merchandising, Content management system (CMS)
Payment gateway

A service that securely transmits payment details from the storefront to the acquiring bank and returns the authorization result, encrypting card data while it is in transit.

Related: Tokenization, PCI DSS
PCI DSS

A set of industry security standards for any organization that stores, processes, or transmits cardholder data, covering encryption, access control, monitoring, and regular testing.

Related: Tokenization, Payment gateway
Chargeback

A cardholder dispute that reverses a payment, usually after a claim of fraud or non-delivery, which the merchant can contest with evidence such as tracking and delivery confirmation.

Related: 3-D Secure, Reverse logistics
3-D Secure

An extra verification step where the cardholder's bank challenges the buyer during checkout, shifting liability for certain fraud losses away from the merchant.

Related: Chargeback, Payment gateway
Tokenization

Replacing sensitive card numbers with substitute values that systems can use to reference a payment without ever holding the real card data.

Related: PCI DSS, Payment gateway
Order management system (OMS)

Software that coordinates orders after checkout, routing them to fulfillment locations, tracking status, managing inventory and returns, and syncing updates to channels and customers.

Related: Backorder, Ship-from-store
Backorder

An order accepted for a product that is currently out of stock, with the item promised for shipment once new inventory arrives.

Related: Order management system (OMS), Dropshipping
Last-mile delivery

The final stage of fulfillment, moving a parcel from a local hub or store to the customer's door; it is usually the most expensive and least predictable part of shipping.

Related: Ship-from-store
Reverse logistics

The processes for moving goods back from customers, covering returns, exchanges, repairs, and recycling, including authorization, transport, inspection, and restocking or disposal.

Related: Chargeback
Ship-from-store

Using retail store inventory to fulfill online orders, shortening the delivery distance and reducing markdowns on stock sitting in stores.

Related: Omnichannel commerce, Order management system (OMS)
Net Promoter Score (NPS)

A loyalty metric based on asking customers how likely they are to recommend the brand on a 0-10 scale, then subtracting the share of detractors from the share of promoters.

Related: Churn rate, Service level agreement (SLA)
Service level agreement (SLA)

A written commitment defining expected service levels, such as how quickly support tickets are answered or orders shipped, along with consequences when targets are missed.

Related: Net Promoter Score (NPS)
Churn rate

The share of customers who stop buying or cancel during a period, calculated by dividing customers lost by the number present at the start of that period.

Related: Subscription commerce, Customer lifetime value (CLV)
Conversion rate

The percentage of visitors or sessions that complete a desired action, most often a purchase, calculated as conversions divided by total visits.

Related: Average order value (AOV), Checkout flow
Average order value (AOV)

Total revenue divided by the number of orders in a period, showing what a typical order is worth and how bundling or upsells affect customer spend.

Related: Upsell, Conversion rate
Attribution

Assigning credit for a sale or conversion to the marketing touchpoints a customer encountered, using models such as last click, first click, or data-driven distribution.

Related: Return on ad spend (ROAS), Cohort analysis
Cohort analysis

Grouping customers by a shared start period or behavior, then tracking their metrics over time to see whether retention and spending improve or decay.

Related: Churn rate, Attribution
Gross merchandise value (GMV)

The total value of goods sold through a platform over a period before deductions such as returns, discounts, or fees, used to gauge the scale of a marketplace.

Related: Online marketplace, Average order value (AOV)
Customer lifetime value (CLV)

The expected net profit a customer generates over the whole relationship with a business, used to judge how much can responsibly be spent to acquire similar customers.

Related: Cost per acquisition (CPA), Churn rate