Free resource
eCommerce KPI Glossary: 217 metrics every store owner should know
A clear definition, how to calculate it, common misconceptions, and what to do when something goes wrong, for every metric. Written by eCommerce people, for store owners.
eCommerce / Electronic Commerce
MarketingAll business activity conducted online — showcasing products, ordering, payment, shipping, and post-sale service. The backbone of every online store.
Read more →CPC – Cost Per Click
MarketingThe price an advertiser pays each time a visitor clicks the ad. Influenced by competition, Quality Score, and landing page relevance.
Read more →CPM – Cost Per Mille
MarketingThe cost of advertising per 1,000 ad impressions. A key metric in awareness-focused and brand-building campaigns.
Read more →CPA – Cost Per Acquisition
MarketingThe amount it costs to get a customer to complete a desired action. A core profitability metric — if CPA exceeds gross profit, the campaign loses money.
Read more →CAC – Customer Acquisition Cost
MarketingTotal marketing and sales spend divided by the number of new customers. Always compare to LTV. A healthy ratio: LTV at least 3x higher than CAC.
Read more →ROAS – Return on Ad Spend
MarketingRevenue generated divided by ad spend. A ROAS of 4 means $4 in revenue for every $1 spent on ads.
Read more →ROI – Return on Investment
FinanceA general profitability metric: (net profit / investment cost) × 100. Different from ROAS — it includes all expenses.
Read more →PPC – Pay Per Click
MarketingAn advertising model where payment occurs only on click. Includes Google Ads, Meta Ads. Allows budget control and instant measurement.
Read more →PMAX – Performance Max
MarketingA Google campaign type automatically distributed across all channels (Search, Shopping, YouTube, Gmail) by AI. Requires quality assets and audience signals.
Read more →Retargeting / Remarketing
MarketingShowing ads to visitors who already visited but didn't purchase. Conversion is 2-5x higher compared to a cold audience.
Read more →Conversion
AnalyticsA desired action a visitor takes — a purchase, sign-up, form submission. The basis for measuring marketing success.
Read more →Conversion Rate (CR)
AnalyticsThe percentage of visitors who completed a desired action. Average: 1-4% for purchases, depending on category.
Read more →CTR – Click Through Rate
MarketingThe percentage of people who clicked a link/ad out of those who saw it. A measure of ad quality and relevance.
Read more →Impressions
MarketingThe number of times an ad was shown to viewers. Different from reach — one person can accumulate multiple impressions.
Read more →Reach
MarketingThe number of unique people exposed to content. Different from impressions — a person who saw it 5 times is counted once.
Read more →Frequency
MarketingThe average number of times each unique visitor saw the ad. High frequency causes ad fatigue.
Read more →Marketing Funnel
MarketingThe stages of the customer journey: awareness → interest → consideration → intent → purchase → loyalty. Each stage requires a different message.
Read more →TOFU – Top of Funnel
MarketingThe awareness stage — the first exposure to the brand. Includes awareness campaigns, SEO content, videos.
Read more →BOFU – Bottom of Funnel
MarketingThe purchase stage — customers who already know and are interested. Effective tactics: coupons, retargeting, social proof.
Read more →Lead
MarketingA potential customer who expressed interest — signed up for a newsletter, asked a question, abandoned a cart.
Read more →Lead Generation
MarketingThe process of attracting interested people into a marketable list. Tools: landing pages, popups, lead magnets.
Read more →Landing Page
MarketingA dedicated page for a campaign, focused on one goal. No distracting navigation, one clear CTA.
Read more →CTA – Call To Action
MarketingAn element that directs the visitor to the next action: 'buy now,' 'sign up.' Design, color, and placement affect CR.
Read more →ATC – Add To Cart
AnalyticsThe action where a visitor adds an item to the cart. Average ATC rate: 8-10% of product page visits.
Read more →Cart Abandonment
AnalyticsA customer added an item to the cart but didn't complete the purchase. Average: 70-75%. One of the biggest opportunities.
Read more →Abandoned Cart Email
MarketingAn automated email sent to a customer who abandoned a cart. The highest ROI among automations — 5-15% of email revenue.
Read more →Welcome Series
MarketingAn automated sequence of 3-5 emails for new subscribers. Open rate: 50-60%.
Read more →Email Marketing
MarketingA direct marketing channel. Average ROI: $36 for every $1 spent. Generates 20-30% of revenue for mature stores.
Read more →ESP – Email Service Provider
MarketingA platform for sending marketing emails. Klaviyo, Mailchimp, Omnisend.
Read more →SMS Marketing
MarketingSending marketing messages via SMS. Open rate: 90%+ within 3 minutes. Requires opt-in.
Read more →Open Rate
AnalyticsThe percentage of recipients who opened the email. Average: 20-25% in eCommerce.
Read more →Click Rate
AnalyticsThe percentage of recipients who clicked a link. Average: 2-3%. A CTOR (click-to-open rate) of 10-15% is a good target.
Read more →Hard Bounce
AnalyticsAn email that failed to deliver due to a permanent reason (address doesn't exist). Must be removed immediately — hurts deliverability.
Read more →Soft Bounce
AnalyticsA temporary email rejection (full inbox, server unavailable). Can be retried.
Read more →Deliverability
AnalyticsThe ability of emails to reach the main inbox, not spam. Affected by reputation, bounce rate, and list quality.
Read more →List Segmentation
MarketingDividing the mailing list into subgroups. Raises open rate by 14% and revenue by 760% (DMA).
Read more →Personalization
MarketingTailoring the experience to each visitor. A name in the subject line raises open rate by 26%. Products viewed on the homepage raise CR.
Read more →Affiliate Marketing
MarketingAffiliates earn a commission (5-30%) on each sale via a unique link. The business pays only for results.
Read more →Influencer Marketing
MarketingPartnering with content creators to showcase products. Nano (<10K), Micro (10-100K), Macro (100K-1M), Mega (1M+).
Read more →UGC – User Generated Content
MarketingContent created by real customers. Influences 79% of purchase decisions.
Read more →Buyer Persona
MarketingA detailed profile of an ideal customer — age, gender, motivations, concerns.
Read more →SKU – Stock Keeping Unit
OperationsA unique identifier for each product variation. The basis for precise inventory management.
Read more →Inventory Management
OperationsTracking, ordering, and maintaining inventory. Too much means cash tied up. Too little means stockouts.
Read more →Stockout
OperationsA product unavailable for shipping. Immediate lost sales plus damaged trust.
Read more →Dropshipping
OperationsSelling without holding inventory — a supplier ships directly to the customer. Low margin (5-20%), no quality control.
Read more →Fulfillment
OperationsThe entire process from receiving an order to delivery: pick, pack, label, ship.
Read more →3PL – Third Party Logistics
LogisticsAn external company for storage, picking, packing, and shipping. The store owner sends inventory to the 3PL, receives orders, and the 3PL handles fulfillment.
Read more →Lead Time
OperationsThe time from ordering with a supplier to receiving inventory. Critical for calculating the reorder point.
Read more →MOQ – Minimum Order Quantity
OperationsThe minimum quantity a supplier requires. Affects cash flow and risk on new products.
Read more →Demand Forecasting
OperationsUsing historical data to predict sales volume. Enables ordering the right amount of inventory at the right time.
Read more →Payment Gateway
PaymentsA service for accepting payments. Stripe, PayPal, Tranzila, Cardcom. Fee: 1.4-3.5% plus a fixed amount.
Read more →AOV – Average Order Value
FinanceTotal revenue divided by number of orders. The biggest lever for increasing revenue without more advertising.
Read more →LTV / CLV – Customer Lifetime Value
FinanceTotal expected profit from a customer over the entire relationship. A healthy LTV:CAC ratio is 3:1.
Read more →Chargeback
PaymentsA customer disputing a charge through their bank. Costs the merchant: a $7-15 fee plus the lost amount. Above 1% puts the account at risk.
Read more →PCI DSS
PaymentsSecurity requirements for any business handling credit card data. Non-compliance means fines and account termination.
Read more →BNPL – Buy Now Pay Later
PaymentsKlarna, PayPlus, Afterpay — interest-free installment payments. Raises AOV by 20-30% but carries a 2-6% fee.
Read more →Refund Policy
PaymentsThe terms and process for refunding a customer. A generous policy raises conversions by 18% on average.
Read more →Gross Margin
Finance(Sale price - COGS) / sale price × 100. The basis for every pricing and advertising decision.
Read more →COGS – Cost of Goods Sold
FinanceThe direct cost of producing or acquiring products sold. Includes: product + import shipping + customs + packaging.
Read more →Cash Flow
FinanceThe movement of cash in the business. 'Profitable on paper, broke in the bank' — a common problem in growing stores.
Read more →Last Mile Delivery
LogisticsThe final leg of shipping — from the logistics center to the customer's door. 53% of shipping costs.
Read more →Reverse Logistics
LogisticsManaging product returns: collection, inspection, sorting, restocking, or recycling. Costs 2-3x regular shipping.
Read more →Carrier
LogisticsA company that performs shipping: DHL, UPS, USPS, FedEx. Each has different pricing, speed, coverage, and reliability.
Read more →Cross-Border Commerce
LogisticsSelling internationally — currencies, languages, taxes, customs, shipping reliability.
Read more →FBA – Fulfillment by Amazon
LogisticsAmazon stores, packs, and ships for you. Includes the Prime badge and higher ranking. Fees: referral + FBA + storage.
Read more →DTC / D2C
OperationsSelling directly to consumers without intermediaries. Control over price, experience, and customer data. Higher margin.
Read more →Omnichannel
OperationsIntegrated management of all sales channels as one unit. Inventory, history, and messaging are synchronized.
Read more →BOPIS
OperationsA customer orders online and picks up in-store. Saves on shipping, and 25% of pickup customers buy an additional item.
Read more →B2C
OperationsSelling to private consumers. Emotional and fast decisions. 60%+ of traffic is mobile.
Read more →B2B
OperationsTrade between businesses. Large orders, credit terms, approval processes. Global volume is 5x that of B2C.
Read more →Bounce Rate
AnalyticsThe percentage of visitors who left after viewing only one page. In GA4, replaced by engagement rate — the percentage of visits with 10+ seconds, a conversion, or 2+ pages.
Read more →Session / Session Duration
AnalyticsA session is the period during which a visitor is active on the site. It ends after 30 minutes of inactivity. Session duration is the average visit length — a measure of engagement.
Read more →Traffic Sources
AnalyticsWhere visitors come from: organic (Google), direct, paid (advertising), social, referral, and email. Each source converts differently.
Read more →Google Analytics (GA4)
AnalyticsThe most widely used measurement platform in eCommerce. Tracks traffic, behavior, sources, conversions, and customer journeys. GA4 is event-based — different from Universal Analytics.
Read more →KPI – Key Performance Indicator
AnalyticsA quantitative measure reflecting success toward business goals. eCommerce KPIs: CR, AOV, LTV, CAC, ROAS, Churn Rate. Every business needs 5-7 core KPIs — not 50.
Read more →Cohort Analysis
AnalyticsGrouping customers by a shared characteristic (month of first purchase) and tracking their behavior over time. Reveals real changes that averages can hide.
Read more →RFM Analysis
AnalyticsCustomer segmentation by Recency (time since last purchase), Frequency, and Monetary value. Highlights your best customers and those at risk of churning.
Read more →Attribution
AnalyticsIdentifying which marketing channel 'deserves credit' for a conversion. Models: First-Touch, Last-Touch, Linear, Time-Decay, Data-Driven. Each model tells a different story.
Read more →NPS – Net Promoter Score
AnalyticsA loyalty metric: 'How likely are you to recommend us?' (0-10). NPS = % Promoters (9-10) minus % Detractors (0-6). Good average: above 50. Above 70 is excellent.
Read more →Heatmap & Session Recording
AnalyticsA heatmap visually shows where visitors click, scroll, and look. Session recording captures visitor behavior. Tools: Hotjar, Microsoft Clarity (free), Crazy Egg.
Read more →SEO – Search Engine Optimization
SEOThe process of optimizing for high rankings in organic search results. Includes: technical SEO (speed, structure), on-page (content, keywords), off-page (inbound links).
Read more →Google Search Console (GSC)
SEOA free Google tool: keywords, clicks, impressions, CTR, ranking, crawl errors, and indexing issues.
Read more →Keyword Research
SEOThe process of identifying what your target audience searches for: search volume, competition, and search intent (informational/transactional/navigational). The foundation of all SEO and paid advertising.
Read more →On-Page SEO
SEOImprovements made directly on a page: H1-H3 headings, meta descriptions, URLs, content, alt text, internal links, schema markup. Fully within your control.
Read more →Backlinks
SEOLinks from external sites — a 'vote of confidence' in Google's eyes. Quality links (from authoritative sites) impact ranking. Quantity matters less than quality.
Read more →Core Web Vitals
SEOThree site performance metrics: LCP (main content load < 2.5s), INP (interaction responsiveness < 200ms), CLS (visual stability < 0.1). Google factors these into rankings.
Read more →Product Feed
SEOA structured file (XML/CSV) with details for every product, sent to Google Shopping, Facebook Catalog, and Amazon. Feed quality directly impacts ROAS.
Read more →CRO – Conversion Rate Optimization
UXA systematic process to improve conversion rates: data analysis, A/B tests, UX improvements, and marketing psychology. Improving CR is equivalent to doubling your ad budget.
Read more →A/B Testing
UXComparing two versions with equal-sized groups. Version A is the existing one, version B is the change. Every major store change is worth testing before full rollout.
Read more →Customer Journey
UXMapping every touchpoint with a brand — from the first ad seen to post-purchase support. Stages: awareness, consideration, purchase, usage, loyalty.
Read more →API – Application Programming Interface
TechA 'language' for communication between systems. A store connects via API to shipping providers, Klaviyo, and payment platforms. The API is the 'pipe' through which data flows.
Read more →Headless Commerce
TechAn architecture that separates the front end (what the customer sees) from the back end (catalog, payments, inventory). Gives full freedom in design and channel integration.
Read more →CRM – Customer Relationship Management
TechA system for storing customer data, communication history, and purchase history. Enables segmentation, personalization, service tracking, and lifecycle management. HubSpot, Salesforce, Klaviyo.
Read more →CDP – Customer Data Platform
TechConsolidates customer data from multiple sources into a unified real-time profile. More advanced than a CRM — pulls behavioral events and enables instant segmentation.
Read more →Marketing Automation
TechSystems that trigger automatic marketing actions: cart abandonment → email, purchase → thank-you SMS, 90 days without a purchase → win-back campaign.
Read more →Customer Service
Customer ExperienceEvery post-purchase interaction — questions, complaints, issues. Channels: chat, phone, email, WhatsApp. Directly impacts NPS, LTV, and reviews.
Read more →Helpdesk / Ticketing
Customer ExperienceA system for managing inquiries: Zendesk, Gorgias, Freshdesk. Consolidates inquiries from all channels into a single view. Enables tracking, assignment, and SLAs.
Read more →Social Proof
UXA psychological phenomenon: people choose based on what others do. In a store: reviews, ratings, purchase counts, UGC, media logos. Boosts conversions by 15-270%.
Read more →Trust Signals
UXElements that establish credibility: SSL (lock icon), payment badges, phone number, return policy, physical address, reviews, media mentions.
Read more →Repeat Purchase Rate
FinanceThe percentage of customers who made at least a second purchase. A gauge of product-market fit and experience quality. Healthy: 25-40% within 12 months. Above 40% is excellent.
Read more →Tokenization
PaymentsReplacing a credit card number with a unique string (a token) for storage and reuse. Enables repeat charges without storing card details — reduces breach risk and supports PCI DSS compliance.
Read more →3D Secure
PaymentsAn additional security layer for card transactions — the customer verifies identity via an SMS code or biometrics. Reduces fraud by 80%+ and shifts liability from the merchant to the issuing bank.
Read more →Subscription / Recurring Billing
PaymentsA sales model based on automatic monthly/annual billing. Common for coffee, cosmetics, supplements, and SaaS. Raises LTV and enables predictable revenue.
Read more →MRR – Monthly Recurring Revenue
FinanceTotal fixed monthly revenue from subscriptions. MRR = number of subscribers × ARPU (average revenue per subscriber). A core metric for SaaS and subscription businesses — enables forecasting and planning.
Read more →Churn Rate
FinanceThe percentage of customers/subscribers who stopped buying or paying in a given period. High churn means every new customer just replaces an old one. Per Harvard research: cutting churn by 5% increases profit by 25-95%.
Read more →Loyalty Program
MarketingA rewards system for repeat customers: points, discounts, early access, gifts. Increases purchase frequency, AOV, and LTV. Examples: Sephora Beauty Insider, Starbucks Rewards.
Read more →Win-Back Campaign
MarketingA dedicated campaign targeting customers who haven't purchased in a while (60-180 days). Usually includes a coupon, an exclusive offer, or a 'we've missed you' message. Cost to re-acquire is 5-7x lower than acquiring a new customer.
Read more →Cross-Sell
MarketingOffering complementary products at the point of purchase. Buying a camera prompts a memory card offer. Buying shoes prompts a socks offer. Raises AOV by 10-30% at no acquisition cost.
Read more →Upsell
MarketingOffering an upgraded or pricier version of the product a customer is choosing. Upgrading from Basic to Pro, or from a medium bottle to a large one. Raises AOV without adding a new product.
Read more →Bundling
MarketingSelling multiple products together at a reduced combined price. A bundle becomes a new SKU. Raises AOV, pairs less-popular products with bestsellers, and simplifies purchase decisions.
Read more →OMS – Order Management System
OperationsA system that consolidates and synchronizes orders from every sales channel (website, marketplaces, physical store) into one place. Manages the order lifecycle: receipt → picking → packing → shipping → returns.
Read more →WMS – Warehouse Management System
OperationsSoftware for managing warehouse operations: receiving goods, placement, picking, packing, shipping. Includes barcode scanning, staff management, and real-time inventory tracking.
Read more →ERP – Enterprise Resource Planning
OperationsA central system for managing all business activity: finance, procurement, inventory, HR, production. Synced with the eCommerce platform. Examples: SAP, NetSuite, Priority.
Read more →GDPR
LegalGeneral Data Protection Regulation — an EU law (2018) governing the collection and processing of personal data. Applies to any company serving EU citizens. Fines up to €20M or 4% of revenue.
Read more →Privacy Policy
LegalA document on the site explaining what data is collected, how it's used, who it's shared with, and users' rights. Legally required in Israel (Privacy Protection Law), under GDPR, and under CCPA.
Read more →Terms of Service
LegalThe contract between merchant and customer: return policy, product warranty, payment terms, liability limits, jurisdiction. Consumer protection laws set minimum requirements.
Read more →Amazon Marketplace
MarketplacesThe world's largest commerce platform — 300M active customers. Offers Seller Central (selling directly to consumers) and Vendor Central (selling to Amazon). Fees: 8-15% referral plus FBA fees.
Read more →Buy Box (Amazon)
MarketplacesThe box on Amazon that displays 'Add to Cart.' The seller who wins the Buy Box gets 80-82% of sales on that ASIN. Other sellers appear under 'Other Sellers' — with almost no clicks.
Read more →Etsy Marketplace
MarketplacesA marketplace for handmade, vintage, and unique design items. 95M active customers. Fees: $0.20 listing + 6.5% transaction + 3% payment processing. Suited to artistic and unique products.
Read more →Marketplace Commission
MarketplacesThe percentage of a sale a marketplace charges on every successful transaction. Amazon: 8-15%. Etsy: 6.5%. eBay: 12.9%. Local marketplaces vary. Directly impacts gross margin.
Read more →CSAT – Customer Satisfaction Score
Customer ExperienceA measure of satisfaction with a specific interaction (support, purchase). Measured on a 1-5 or 1-10 scale. CSAT = (positive scores / total scores) × 100. Good average: above 80%.
Read more →CES – Customer Effort Score
Customer ExperienceHow easy it is for a customer to accomplish their goal — a purchase, service request, or return. Measured by: 'how much effort was required?' (1-7). Strongly correlated with loyalty — ease beats 'delight.'
Read more →PWA – Progressive Web App
TechA website that behaves like an app — fast, works offline, and can be added to the home screen. Cuts load time by 50%+ and increases engagement and CR on mobile.
Read more →POS – Point of Sale
TechA checkout system for physical stores synced with the online store. Enables unified management of inventory, customers, and sales. Shopify POS, Square, iCount.
Read more →Chatbot / AI Assistant
TechAn automated conversation system — rule-based or AI-powered — that handles customer inquiries 24/7. Reduces service load, shortens wait times, and boosts CR through instant answers.
Read more →Push Notifications
TechMessages sent directly to a user's browser/app without email. Open rates: 7-12% (2-3x higher than email). Requires explicit opt-in. Tools: OneSignal, PushOwl.
Read more →Responsive Design
TechA website that adapts to different screen sizes — desktop (1200px+), tablet (768px), mobile (375px). In 2024: 60%+ of traffic comes from mobile — responsive design is mandatory, not a nice-to-have.
Read more →Net Revenue
FinanceGross sales minus returns, cancellations, and discounts. Net Revenue = Gross Revenue - Returns - Cancellations - Discounts. What's left after deductions.
Read more →Contribution Margin
FinanceGross profit minus marketing, payment processing, and variable shipping costs. Contribution Margin = Net Revenue - COGS - Variable Costs. Reflects the real profit each order 'contributes' toward covering fixed costs.
Read more →GMV – Gross Merchandise Value
FinanceTotal sales before returns, discounts, and fees. GMV = price × quantity for each transaction. Common among marketplaces (eBay, Etsy, Amazon) that measure activity volume. GMV isn't the same as a merchant's revenue.
Read more →Content Marketing
SEOCreating valuable content (blog posts, guides, videos, podcasts) that attracts potential customers organically. Goal: build authority, brand awareness, and long-term SEO.
Read more →Blog
SEOA section of the site with ongoing articles. A powerful SEO tool for capturing long-tail keywords and building niche authority. Drives targeted organic traffic — customers actively searching for a solution.
Read more →Meta Title & Description
SEOThe Meta Title is the headline shown in the SERP and browser tab (up to 60 characters). The Meta Description is the text below it (up to 160 characters). Both directly affect Google CTR.
Read more →Schema Markup / Structured Data
SEOJSON-LD code that explains page content to Google — products, reviews, prices, FAQs. The foundation for rich snippets (stars, price, availability) that boost CTR.
Read more →Internal Linking
SEOLinks between pages on your site. Helps SEO (passing 'authority'), navigation, and guiding visitors from content to product pages. One of the highest-ROI SEO tactics.
Read more →Local SEO
SEOOptimization for local searches: 'shoe store in [city],' 'pizza near me.' Includes Google Business Profile, Google reviews, local citations, and local schema.
Read more →UX – User Experience
Customer ExperienceThe overall experience of a visitor interacting with the site — speed, ease, navigation, clarity. Poor UX directly hurts conversions. Good UX means visitors find what they wanted with minimal effort.
Read more →UI – User Interface
Customer ExperienceThe visual design of the site — colors, typography, icons, layout, spacing. Good UI guides the eye, creates visual hierarchy, and builds trust. Poor UI confuses and repels.
Read more →Above the Fold
Customer ExperienceThe content a visitor sees without scrolling — the first 50-60% of screen height. 80% of visitors don't scroll below the fold. What's above the fold determines whether the visitor stays or leaves.
Read more →Wishlist
Customer ExperienceA feature that lets customers save products for future purchase. Helps generate leads, enables targeted marketing ('the item you wanted is back in stock'), and reduces purchase-time friction.
Read more →FOMO – Fear of Missing Out
MarketingA psychological trigger that creates urgency and drives action. In eCommerce: stock counters, countdown timers, 'X people viewing now,' 'price rises in 24 hours.' Boosts CR by 10-40%.
Read more →Social Commerce
MarketingCompleting purchases directly within social platforms without visiting the site. Instagram Shop, TikTok Shop, Facebook Shop, Pinterest Shopping. The purchase happens within the feed.
Read more →Influencer Tiers
MarketingNano (<10K), Micro (10K-100K), Macro (100K-1M), Mega (1M+). Each tier has a different engagement rate, cost, and ROI. Micro and Nano influencers usually generate 2-3x higher engagement rates than Mega influencers.
Read more →Brand Awareness
MarketingThe degree to which your target audience recognizes your brand. Measured by: direct Google searches (brand search volume), direct traffic, and brand mentions. The foundation of any long-term marketing strategy.
Read more →Omnichannel Marketing
MarketingA strategy delivering a consistent customer experience across every touchpoint — website, email, SMS, social media, physical store. Messaging, tone, and history stay consistent across every channel.
Read more →Pricing Strategy
FinanceThe strategy for setting a product's price. Types: Cost-Plus (cost + markup), Value-Based (what it's worth to the customer), Competitive (market-based), Penetration (low price to break in), Premium (high price to differentiate).
Read more →Break-Even Analysis
FinanceCalculating how many sales/how much revenue is needed to cover fixed and variable costs. Break-Even Point = Fixed Costs / (Price - Variable Cost per Unit). Above this point, every sale is profit.
Read more →ARPU – Average Revenue Per User
FinanceARPU = total revenue / number of active customers. A metric common in SaaS and subscription businesses. eCommerce version: ARPU = annual revenue / active customers (= one-year LTV).
Read more →Headless CMS
TechA CMS without a built-in front end — it manages content and delivers it via API. Lets you display content across any channel (website, app, IoT, smartwatch) from one source. Contentful, Sanity, Strapi.
Read more →SaaS – Software as a Service
TechA model where software is consumed as an online service via monthly/annual payment, with no local installation. Shopify, Klaviyo, Hotjar, Zendesk — all SaaS. Enables fast scaling without infrastructure.
Read more →CAC Payback Period
AnalyticsHow long it takes for a customer to 'pay back' the cost of acquiring them. Payback = CAC / (Monthly ARPU × Gross Margin). Benchmark: under 12 months = healthy. Over 18 = risky.
Read more →LTV:CAC Ratio
AnalyticsThe ratio between a customer's lifetime value and their acquisition cost. A 3:1 ratio is healthy. Below 2:1 is risky. Above 5:1 often signals underinvestment in growth (you could be more aggressive in acquisition).
Read more →Safety Stock
LogisticsExtra inventory held beyond what average demand requires — protects against demand fluctuations, lead-time delays, and forecasting errors. Safety Stock = Z × √Lead Time × Demand STD.
Read more →Reorder Point
LogisticsThe inventory level at which a new order must be placed with the supplier. ROP = (Average Daily Sales × Lead Time) + Safety Stock. Prevents stockouts between orders.
Read more →SLA – Service Level Agreement
LogisticsA contract between a merchant and a service provider (3PL, carrier, customer service) defining: delivery times, order accuracy, response time, and penalties for failure. The basis for managing expectations and accountability.
Read more →Inventory Turnover
LogisticsHow many times inventory is fully sold and replaced in a year. Turnover = COGS / average inventory value. Benchmark: 4-12x depending on category. Higher = efficient inventory. Lower = tied-up capital.
Read more →PIM – Product Information Management
OperationsA system for storing, editing, and distributing product data — descriptions, images, specs, categories — from one place to every channel. Akeneo, Contentful PIM, Salsify.
Read more →Return Rate
OperationsThe percentage of orders that get returned. Return Rate = returns / orders × 100. Averages: apparel 20-30%, electronics 8-15%, books 5%. Above benchmark signals a problem worth investigating.
Read more →Dead Stock
OperationsProducts that haven't sold and aren't expected to sell — inventory that's stuck. It costs money: storage, insurance, tied-up capital, and often depreciation. One of the biggest causes of cash-flow problems.
Read more →Private Label
OperationsSelling externally manufactured products under your own brand. The supplier manufactures, you brand and sell. Higher gross margin than reselling, control over pricing, and building a brand asset.
Read more →Email Automation Flows
MarketingAutomated email sequences triggered by an event: sign-up, purchase, cart abandonment, return visit. They run 24/7 and generate revenue without ongoing effort.
Read more →UTM Parameters
MarketingTags added to links to identify traffic source in GA4. UTM Source (Google, Facebook), Medium (CPC, Email), Campaign (campaign name). The basis for accurate attribution.
Read more →Customer Segmentation
MarketingDividing the customer base into groups with shared traits: demographic, behavioral, geographic, psychographic. Enables targeted messaging, personalization, and higher ROI.
Read more →Drip Campaign
MarketingAn automated series of emails sent at pre-scheduled intervals: day 1, day 3, day 7, day 14. Goal: education, trust-building, and gradually guiding toward a purchase.
Read more →Referral Program
MarketingA system that rewards existing customers for bringing in new ones. Rewards: discounts, credit, free product. A customer who arrives via referral converts 3-5x better than one from paid advertising.
Read more →Abandoned Browse
MarketingA visitor who viewed specific product pages but didn't add anything to cart. An automated flow reminds them of the products they viewed. Less urgent than abandoned cart but converts at 3-5% on average.
Read more →Post-Purchase Flow
MarketingAn automated sequence starting after a purchase: order confirmation, shipping updates, review requests, cross-sell, win-back. Increases LTV, repeat purchase rate, and NPS.
Read more →Funnel Analysis
AnalyticsAnalysis showing how many visitors move through the stages of the purchase process — and where they drop off. In GA4: Explore → Funnel Exploration. Displays the drop-off rate at each stage.
Read more →Data-Driven Decision Making
AnalyticsA business approach where every decision is based on hard data — not gut feeling, experience, or the opinion of the most senior person in the room. Requires quality data, analytics, and an organizational culture.
Read more →Customer Lifetime Value Prediction
AnalyticsUsing statistical models and AI to predict a customer's expected LTV based on early behavior. Klaviyo offers built-in Predictive CLV. Enables acting early.
Read more →North Star Metric
AnalyticsA single metric that represents the business's true growth and the value it delivers to customers. Amazon: number of Prime products available. Shopify: partner GMV. A store: customers who bought more than twice.
Read more →Unit Economics
FinanceAnalyzing revenue and costs at the level of a single unit — one customer, one order. Includes: CAC, LTV, Gross Margin, Payback, Contribution Margin. The basis for understanding business sustainability.
Read more →Working Capital
FinanceThe difference between current assets (cash, inventory, receivables) and current liabilities (payables, short-term credit). A liquidity metric — the business's ability to fund day-to-day operations. Positive working capital = healthy.
Read more →Webhook
TechAn automated 'phone call' between systems when an event occurs: a new order → Shopify notifies Klaviyo, the 3PL, and GA4 simultaneously. Unlike an API, which requires a query, a webhook 'pushes' data automatically.
Read more →CDN – Content Delivery Network
TechA global network of servers that distributes content (images, video, JS) from the server closest to the visitor. Cuts load time by 40-70%, improves Core Web Vitals, and boosts SEO.
Read more →SSL Certificate
TechA security certificate that encrypts communication between the browser and the site. Signaled by HTTPS and a lock icon in the browser. Mandatory for every store — without SSL, Google marks the site 'Not Secure,' customers leave, and PCI compliance fails.
Read more →Mobile-First Design
TechA design approach that starts with the mobile screen and expands to desktop. Google indexes based on the mobile version. Over 60% of eCommerce traffic is mobile. Mobile-first is a priority for the majority of visitors.
Read more →Omnichannel Customer Experience
Customer ExperienceA consistent, unified customer experience across every touchpoint — website, app, physical store, email, social media, and WhatsApp. History, offers, and messaging stay the same across every channel.
Read more →Customer Onboarding
Customer ExperienceThe process of introducing a new customer to your product/service — welcome emails, usage guides, proactive check-ins. The first impression that drives long-term retention. A well-onboarded customer stays; one who isn't leaves.
Read more →Personalization Engine
Customer ExperienceA system that shows personalized content, products, and offers to each visitor in real time — based on history, behavior, and traits. Raises CR and AOV by 10-25%.
Read more →Voice Search Optimization
SEOAdapting site content for voice searches (Siri, Google Assistant, Alexa). Voice search means natural language and longer questions ('where can I buy...'). Growing — 20-25% of mobile searches.
Read more →Video SEO
SEOOptimizing video content for search on Google and YouTube. Includes: titles, descriptions, tags, chapters, transcripts. YouTube is the world's second-largest search engine.
Read more →Rich Snippets
SEOEnhanced search results with stars, price, availability, FAQ, or a video thumbnail. Based on schema markup. Raise CTR by 20-30% compared to a plain result.
Read more →Digital Wallet
PaymentsA browser/device-based payment method: Apple Pay, Google Pay, Shop Pay, PayPal. The customer confirms with a fingerprint/Face ID — no data entry needed. Shortens checkout to 1-2 steps. Raises mobile CR by 30%+.
Read more →Friendly Fraud
PaymentsA customer who made a legitimate purchase and files a chargeback — forgot they bought it, didn't recognize the charge, a child bought without permission, or a deliberate attempt to get a free product. 30-40% of chargebacks are friendly fraud.
Read more →Payment Fraud
PaymentsUnauthorized use of stolen credit-card details for purchases. Includes card testing (checking which stolen cards are active with small charges), account takeover, and triangulation fraud. Costs the merchant the goods plus a chargeback.
Read more →Demand Planning
OperationsA managed process for forecasting future demand and planning purchases accordingly. Differs from demand forecasting by also including: planned promotions, seasonality, new launches, and promotional events.
Read more →Supplier Management
OperationsManaging the relationship with suppliers: selection, evaluation, negotiation, execution, and building long-term partnerships. A reliable supplier is a business backbone. An unreliable one means stockouts, poor quality, and crises.
Read more →B2B eCommerce Portal
OperationsA self-service purchasing platform for B2B customers: tiered pricing, registration, net terms, quick CSV ordering, and account hierarchy. Replaces a manual phone-and-email process and generates orders 24/7.
Read more →Subscription Box
OperationsA subscription product where the customer receives a curated selection of products each month. Birchbox, FabFitFun, HelloFresh. Raises LTV and generates predictable MRR.
Read more →Programmatic Advertising
MarketingAutomated purchase of digital ad space via algorithms and real-time bidding (RTB). Instead of negotiating with sites directly, a system buys impressions in real time based on target audience. Google Display, Meta, DV360.
Read more →Ad Fatigue
MarketingA decline in ad performance after repeated exposure to the same audience. Shows up as: falling CTR, rising CPM, low relevance score. Requires creative refresh and audience expansion.
Read more →Lookalike Audience
MarketingA target audience that platforms (Meta, Google, TikTok) create based on your existing customers' traits. 'Find people similar to my best 1,000 customers.' Expands acquisition beyond interest-based targeting.
Read more →Retargeting Pixel
MarketingA small JavaScript snippet embedded on the site that tracks visitor actions — visits, product views, add-to-cart. The basis for retargeting, lookalikes, and conversion measurement. Meta Pixel, Google Tag.
Read more →Landing Page Optimization
MarketingThe process of improving a landing page to maximize conversions. Includes: message match, load speed, a clear CTA, social proof, and minimal distractions. Focused CRO for a page linked to a campaign.
Read more →Conversion Funnel
MarketingThe stages a customer moves through from discovering a product to purchase: awareness → interest → consideration → intent → purchase. Each stage requires different content, messaging, and tactics.
Read more →Marketing Mix
MarketingA combination of all marketing channels and tools: paid advertising, organic (SEO, social), email, influencer, referral, PR. A healthy strategy is diversified across channels rather than relying on just one.
Read more →Crawl Budget
SEOThe number of pages Google allocates to crawling your site in a given period. For small sites, not an issue. For stores with 10,000+ pages, it's critical that Google 'spends' its crawl on the pages that matter.
Read more →Robots.txt
SEOA text file at yourdomain.com/robots.txt that tells bots which pages to crawl and which to skip. Allow/Disallow by path. One of the most basic tools in technical SEO.
Read more →Sitemap XML
SEOAn XML file at yourdomain.com/sitemap.xml that lists all of a site's pages for crawling and indexing. Includes: URL, last-modified date, priority. Speeds up indexing of new content.
Read more →Attribution Window
AnalyticsThe period during which an ad platform 'credits' a sale to an ad shown. Meta default: 7-day click + 1-day view. Google: 30-day click. A wider window means more attributed conversions.
Read more →Multi-Touch Attribution
AnalyticsAn attribution model that gives credit for a conversion to multiple marketing touchpoints along the customer journey. Includes: linear (equal), time-decay (more weight to recent), and data-driven (AI).
Read more →Cohort Retention Rate
AnalyticsThe percentage of customers from a given cohort (a group defined by first purchase) who remain active over time. Month-1 retention = the percentage who bought again within 30 days. A health indicator for LTV.
Read more →Customer Acquisition Funnel
AnalyticsAnalysis of a new customer's specific journey — from initial discovery (impression) to first purchase. Different from a conversion funnel, which also includes existing customers. Focuses on CAC and acquisition quality.
Read more →Net Profit Margin
FinanceNet profit divided by total revenue, as a percentage. Net Profit Margin = net profit / revenue × 100. Includes every expense: COGS, marketing, rent, salaries, taxes. The truest measure of profitability.
Read more →Operating Cash Flow
FinanceCash generated by a business's day-to-day operations, excluding investing or financing activity. OCF = Net Income + D&A + changes in working capital. Measures how much cash operations actually generated.
Read more →Markup vs Margin
FinanceMarkup: how much was added above cost. COGS $14 + 100% markup = $28 price. Margin: the profit percentage of the price. Price $28, COGS $14 = 50% margin. Same product — different numbers.
Read more →eCommerce P&L
FinanceA financial report detailing all of a store's revenue and expenses. eCommerce P&L structure: Revenue → Gross Profit → Marketing Contribution → EBITDA → Net Profit. The basis for every financial decision.
Read more →A/B Testing Tools
TechPlatforms that let you run A/B tests on your site and emails without code. VWO, Optimizely, Convert, Google Optimize (discontinued), Klaviyo (for email). Manage traffic split, statistical significance, and reporting.
Read more →Google Tag Manager (GTM)
TechA free Google tool for managing and publishing tracking code (tags) on your site without touching the codebase. Pixels, analytics, conversion tracking — all managed from one place. Essential for modern marketing.
Read more →Server-Side Tracking
TechSending tracking data from a server (not the browser) to ad platforms. Solves iOS 14, ad-blocker, and cookie-restriction issues. Raises conversion match rate by 20-40%.
Read more →First-Party Cookies
TechCookies created by the site's own domain (not a third party). Live longer, are less restricted by browsers, and are more resilient to privacy changes. The foundation of a first-party data strategy.
Read more →Third-Party Cookies
TechCookies created by a domain different from the one being viewed (like Facebook, Google, or advertisers). Enable cross-site tracking. Blocked in Safari and Firefox, and gradually in Chrome. A shift affecting the entire ad industry.
Read more →First Contact Resolution (FCR)
Customer ExperienceThe percentage of inquiries resolved on the first contact without needing to follow up with the customer. FCR = inquiries resolved on the first attempt / total inquiries × 100. Good benchmark: above 70%. Directly tied to CSAT and service costs.
Read more →Average Handle Time (AHT)
Customer ExperienceThe average time an agent spends on an inquiry: talk time + after-call work. AHT = (Talk Time + Hold Time + After-Call Work) / number of inquiries. Benchmark: 4-6 minutes for chat, 5-8 for a phone call.
Read more →Knowledge Base
Customer ExperienceA central information repository (articles, guides, FAQs) accessible to customers and/or agents. Reduces service load, raises FCR, and enables 24/7 self-service. Zendesk Guide, HelpScout Docs, Gorgias Help Center.
Read more →VoC – Voice of Customer Program
Customer ExperienceA systematic process for collecting, analyzing, and acting on customer feedback. Includes: NPS, CSAT, exit surveys, review analysis, CS ticket mining. Goal: turning the voice of the customer into business decisions.
Read more →
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