--- title: Glossary Listing date: 2026-03-04T17:19:00+01:00 canonical_url: "https://www.takefortytwo.com/en/glossary/" section: Glossary Listing --- [GlossaryBack to Homepage](https://www.takefortytwo.com/en/) Ecommerce Glossary # A Cure for Jargon There are many *Merchants of Complexity* out there. None here. Browse our definitions if you need to find clarity in the fog of buzzwords. ## A [### A/B Testing Also known as split testing, A/B testing compares two different versions of a webpage, product page, or email campaign to measure which one performs better.](https://www.takefortytwo.com/en/glossary/ab-testing/)[### Abandoned Cart When a customer adds products to their online shopping cart but leaves without completing the purchase.](https://www.takefortytwo.com/en/glossary/abandoned-cart/)[### API An Application Programming Interface is a set of tools and protocols that allow different applications to communicate with each other.](https://www.takefortytwo.com/en/glossary/api/) ## B [### B2B Business-to-business is a model where a company sells goods or services to another company. B2B transactions typically involve larger orders and longer sales cycles-](https://www.takefortytwo.com/en/glossary/b2b/)[### B2B2C Business-to-business-to-consumer combines B2B and B2C processes, offering the merchants more flexibility to expand into new markets and giving consumers more choice.](https://www.takefortytwo.com/en/glossary/b2b2c/)[### B2C Business-to-consumer involves selling products or services directly to individual consumers. B2C transactions tend to be smaller but more frequent and impulse-driven.](https://www.takefortytwo.com/en/glossary/b2c/)[### BOPIS Buy Online Pick Up In Store is a retail strategy that lets customers purchase online and collect items from a physical store.](https://www.takefortytwo.com/en/glossary/bopis/)[### Bounce Rate In email marketing, the percentage of emails returned due to invalid addresses or server errors. In web analytics, the percentage of visitors who leave after viewing only one page.](https://www.takefortytwo.com/en/glossary/bounce-rate/) ## C [### CaaS Commerce-as-a-Service provides businesses with a pre-built, modular commerce platform that can be assembled from best-in-class components.](https://www.takefortytwo.com/en/glossary/caas/)[### CLV Customer Lifetime Value is the total revenue earned from a customer over their entire relationship with your brand.](https://www.takefortytwo.com/en/glossary/clv/)[### CMS A Content Management System is software that lets you create, manage, and publish content online without programming expertise.](https://www.takefortytwo.com/en/glossary/cms/)[### Composability A modular approach to building eCommerce systems by assembling best-in-class components that work together.](https://www.takefortytwo.com/en/glossary/composability/)[### Content-as-a-Service A content management approach using APIs to store and deliver content for various channels.](https://www.takefortytwo.com/en/glossary/content-as-a-service/)[### Conversion Rate The percentage of website visitors who take a desired action, such as buying a product or signing up for a mailing list.](https://www.takefortytwo.com/en/glossary/conversion-rate/)[### CPA Cost Per Acquisition measures the cost a business incurs to acquire a new customer or drive a conversion.](https://www.takefortytwo.com/en/glossary/cpa/)[### Cross-selling A sales tactic that involves suggesting complementary or related products to customers based on their purchase history or current selection.](https://www.takefortytwo.com/en/glossary/cross-selling/)[### CTOR Click to Open Rate measures the number of people who clicked a link out of those who actually opened the email — unlike CTR, which uses total delivered emails.](https://www.takefortytwo.com/en/glossary/ctor/)[### CTR Click-Through Rate measures how many people clicked on a link in your email out of the total number of recipients. A low CTR suggests your message isn't compelling enough.](https://www.takefortytwo.com/en/glossary/ctr/) ## D [### Deliverability Rate An email metric that represents the percentage of sent emails successfully delivered to the recipient's server.](https://www.takefortytwo.com/en/glossary/deliverability-rate/) ## E [### eCommerce Electronic commerce covers all commercial transactions conducted over the Internet — from online stores and marketplaces to mobile apps.](https://www.takefortytwo.com/en/glossary/ecommerce/)[### ERP Enterprise Resource Planning is a software system that integrates and organizes all key business processes in one place, helping you make better decisions and streamline operations.](https://www.takefortytwo.com/en/glossary/erp/) ## G [### GEO - Generative Engine Optimization GEO is about being visible, credible, and citable in AI-powered search environments.](https://www.takefortytwo.com/en/glossary/geo-generative-engine-optimization/) ## H [### Headless Commerce An ecommerce architecture where the front-end and back-end are decoupled, connected via APIs. This separation gives unparalleled flexibility to merchants.](https://www.takefortytwo.com/en/glossary/headless-commerce/) ## I [### Inbox Placement Rate The percentage of emails that land in the primary inbox rather than spam or promotions folders. While Accepted Rate tells you emails get delivered, Inbox Placement Rate measures whether they reach…](https://www.takefortytwo.com/en/glossary/inbox-placement-rate/) ## L [### Logistics In eCommerce, logistics refers to planning, implementing, and controlling the flow of goods and information from origin to delivery.](https://www.takefortytwo.com/en/glossary/logistics/) ## M [### MACH MACH stands for Microservices, API-first, Cloud-native SaaS, and Headless. The MACH Alliance sets the industry standard for composable commerce.](https://www.takefortytwo.com/en/glossary/mach/)[### Microservices A software development approach that breaks down an application into small, loosely coupled services that can be developed and deployed independently.](https://www.takefortytwo.com/en/glossary/microservices/) ## O [### Omnichannel A sales strategy that lets consumers interact with a brand across multiple channels.](https://www.takefortytwo.com/en/glossary/omnichannel/)[### Open Rate A metric that measures how many recipients actually open your email, expressed as a percentage of total emails sent.](https://www.takefortytwo.com/en/glossary/open-rate/)[### Open SaaS Platforms like BigCommerce that balance the control of open source with the convenience of SaaS. They provide a customizable environment while handling infrastructure management, offering flexibility…](https://www.takefortytwo.com/en/glossary/open-saas/)[### Open Source eCommerce platforms like WooCommerce, Prestashop, and Magento that provide access to their source code, allowing users to modify and customize them freely.](https://www.takefortytwo.com/en/glossary/open-source/) ## P [### PaaS Platform as a Service provides developers with tools and services to build, deploy, and manage eCommerce applications without worrying about underlying infrastructure.](https://www.takefortytwo.com/en/glossary/paas/)[### PPC Pay Per Click is an advertising model where advertisers only pay when someone clicks on their ad.](https://www.takefortytwo.com/en/glossary/ppc/) ## S [### SaaS Software-as-a-Service eCommerce platforms operate under a recurring fee model, handling backend infrastructure and maintenance.](https://www.takefortytwo.com/en/glossary/saas/)[### SEO Search Engine Optimization is the process of improving a website's visibility in organic search results by optimizing technical structure and content.](https://www.takefortytwo.com/en/glossary/seo/) ## U [### Upselling A sales technique used to persuade customers to purchase a higher-end or more expensive product than originally intended.](https://www.takefortytwo.com/en/glossary/upselling/)[### UX/UI UX (User Experience) covers the total experience a user has with a product, while UI (User Interface) focuses on the visual elements they interact with.](https://www.takefortytwo.com/en/glossary/ux-ui/)