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Glossary of Terms & KPI Definitions

This article defines every metric Wayflyer Intelligence can answer questions about. Metrics are grouped by topic so you can find what you need quickly. Each definition includes the underlying formula where one applies.

Available splits (dimensions)

You can group and filter most metrics by the dimensions below. The matrix shows which metric category each dimension is available on.

Dimension

Order-based (Revenue, Discounts, Orders, Customer)

Marketing (Ad Spend, Clicks, Impressions…)

Web analytics (Sessions, Conversion Rate)

Accounting (P&L, Balance Sheet)

Store

✓*

✓*

Territory

Sales channel

✓*

✓*

Sales platform

✓*

✓*

Marketing platform

Marketing channel

Product

name, SKU, category, etc.

UTM

source, medium, campaign, ad group, ad

Payment gateway

Promo code

checkout discount code

Order status

financial / fulfillment

Ledger account

the account a transaction is posted to

Account category

Income / Expense / Asset / Liability / Equity

* Only available when one Shopify store is connected.


Data sources

Your access to each metric depends on which connectors you have set up.

Source

Unlocks

Shopify

Revenue, Discounts, Refunds, Units, Orders, Customer, Inventory, Tax, LTV, CAC

Google Analytics 4

Sessions, Conversion Rate, Revenue attribution

Google Ads

Ad spend, clicks, impressions, platform ROAS, platform-attributed conversions for Google

Meta Ads

Ad spend, clicks, impressions, platform ROAS, platform-attributed conversions for Meta

TikTok Ads

Ad spend, clicks, impressions

Amazon

Orders, Units Sold, Sales. Store-level only, no product or customer detail (that detail is only available for Amazon sales recorded through Shopify)

Accounting platform (Xero, QuickBooks, Sage and others)

Revenue, Expenses, Profit, Margin, Cash, Assets, Liabilities, Equity (P&L and Balance Sheet)


KPI Definitions

Revenue

Gross Revenue
Total value of your orders, including shipping revenue, including tax and accounting for checkout discounts, but not accounting for refunds.

  • Formula: Gross Product Revenue + Gross Shipping Revenue

Gross Product Revenue
Gross revenue from products only, excluding shipping.

Gross Shipping Revenue
Shipping fees paid by your customers to your business.

Gross Revenue less Refunds
Gross Revenue with refunds deducted; refunds are tied to the original order date.

  • Formula: Gross Revenue − Gross Refund

Net Revenue
Total value of your orders, including shipping revenue, excluding tax and accounting for checkout discounts, but not accounting for refunds.

  • Formula: Gross Revenue − Tax

Net Revenue less Refunds
Net Revenue with refunds deducted.

  • Formula: Net Revenue − Net Refund

Net Revenue less Refunds and Shipping
Net Revenue with refunds and shipping revenue both removed — useful for product-only economics.

New Customer Gross Revenue
Gross revenue from orders placed by customers ordering for the first time.

Existing Customer Gross Revenue
Gross revenue from orders placed by customers who have ordered before.

New Customer Revenue %
Share of gross revenue coming from new customers.

  • Formula: New Customer Gross Revenue / Gross Revenue

Existing Customer Revenue %
Share of gross revenue coming from existing customers.

  • Formula: Existing Customer Gross Revenue / Gross Revenue

Gross Revenue Mix %
Each row's share of total gross revenue across the current breakdown — for example, each product's share of revenue when grouped by product.

Gross Revenue Percentile
Each row's rank within the breakdown, from 0 to 100.


Profitability

Contribution (before COGS)
Net revenue (less refunds) minus marketing spend. A quick read on whether revenue is outpacing marketing investment. Does not yet account for product costs.

  • Formula: Net Revenue less Refunds − Ad Spend


Discounts & Refunds

Gross Discount
Revenue lost to checkout discounts. Excludes markdowns and price-list discounts.

Discount %
Percentage of revenue lost to checkout discounts.

  • Formula: Gross Discount / (Gross Revenue + Gross Discount)

New Customer Discount %
Discount % on new-customer orders.

Existing Customer Discount %
Discount % on existing-customer orders.

Number of Orders with Discounts
Count of orders where a checkout discount was applied.

% Orders Discounted
Share of orders that had a checkout discount.

Gross Refund
Product and shipping revenue refunded from orders placed in the selected date range. Refunds may have occurred outside of the selected date range — they're tied to the original order date.

  • Formula: Gross Product Refund + Gross Shipping Refund

Gross Product Refund
Refunded product revenue.

Gross Shipping Refund
Refunded shipping revenue.

Net Refund
Refunds excluding tax.

Refund %
Percentage of revenue refunded.

  • Formula: Gross Refund / Gross Revenue

Existing Customer Refund %
Refund % on existing-customer orders.


Units & Orders

Orders
Number of orders placed, excluding orders with zero gross revenue.

Orders (Including Zero Revenue Orders)
Same as Orders, but counts zero-value orders (e.g. comp orders) too.

Units Sold
Quantity of units sold across all orders.

Net Units
Units sold net of refunded units.

  • Formula: Units Sold − Units Refunded

Units Refunded
Quantity of units refunded.

Units Allocated
Units allocated to orders (for stock-allocation reporting).

Units per Order
Average number of units per order.

  • Formula: Units Sold / Orders

New Customer Units per Order
Units per order on new-customer orders.

Existing Customer Units per Order
Units per order on existing-customer orders.

Average Order Value (AOV)
Average order value, including tax and shipping as paid by your customers.

  • Formula: Gross Revenue / Orders

New Customer AOV
AOV on new-customer orders.

Existing Customer AOV
AOV on existing-customer orders.

Average Selling Price (ASP)
Average revenue per unit.

  • Formula: Gross Product Revenue / Units Sold


Customer

Total Customers
Number of unique customers who placed an order in the selected date range.

Customers Acquired (New Customers)
Number of customers placing their first ever order in the selected date range.

Existing Customers
Number of returning customers (customers who had ordered before the selected date range).

Existing Customers Mix %
Share of customers that are returning.

Customers Acquired Mix %
Share of customers that are new.

Customer Order Frequency
Average number of orders per customer in the date range.

  • Formula: Orders / Total Customers

Existing Customer Order Frequency
Average orders per existing customer in the date range.

  • Formula: Existing Customer Orders / Existing Customers

6 / 12 / 24-month Order Frequency
Average orders per cohort customer within 6, 12, or 24 months of acquisition.

  • Formula: Cohort Orders (window) / Customers in Cohort

3 / 6 / 12 / 24-month Repeat Rate
Share of acquired customers who placed at least one additional order within the cohort window.

  • Formula: Customers with a Repeat Purchase / Customers in Cohort

Average Days Between Orders
Average gap between consecutive orders for repeat customers.


Web traffic & Attribution

Sessions
Number of visits to your website, pulled from Google Analytics.

Conversion Rate
Share of sessions that resulted in an order.

  • Formula: Orders / Sessions

Conversion Rate (incl. Untracked)
Conversion Rate including orders that weren't matched to a Google Analytics session.

Platform Attributed Conversions
Orders attributed to a marketing platform using that platform's own attribution model (Meta, Google, TikTok).

Platform Attributed Revenue
Gross revenue from platform-attributed orders.

Platform ROAS

  • Formula: Platform Attributed Revenue / Ad Spend

Platform ACoS

  • Formula: Ad Spend / Platform Attributed Revenue


Advertising & Marketing

Ad Spend
Total cost of your digital marketing campaigns across Google Ads, Meta Ads, TikTok Ads.

Clicks
Number of clicks your ads received across connected platforms.

Impressions
Number of times your ads were shown across connected platforms.

Max Search Impressions
Maximum possible search impressions for your campaigns (used to calculate impression share).

Impression Share
Share of total available impressions your ads captured.

  • Formula: Impressions / Max Search Impressions

Click-through Rate (CTR)

  • Formula: Clicks / Impressions

Cost per Click (CPC)

  • Formula: Ad Spend / Clicks

Cost per Mille (CPM)
Cost per 1,000 impressions.

  • Formula: Ad Spend / (Impressions / 1,000)

Cost per Order (CPO)

  • Formula: Ad Spend / Orders

Return on Ad Spend (ROAS)

  • Formula: Gross Revenue / Ad Spend

ROAS (Net Revenue less Refunds)

  • Formula: Net Revenue less Refunds / Ad Spend

TACoS (Total Advertising Cost of Sales)

  • Formula: Ad Spend / Gross Revenue


LTV & CAC

CAC (Customer Acquisition Cost)
Average marketing spend per newly-acquired customer.

  • Formula: Ad Spend / Customers Acquired

LTV Gross Revenue
Gross revenue generated by a customer cohort. Reported on 6-month, 12-month, and 24-month windows.

  • Formula: Cohort Gross Revenue (window) / Customers in Cohort

LTV Net Revenue less Refunds
Net revenue (less refunds) generated by a customer cohort, on 6 / 12 / 24-month windows.

LTV Contribution
Average contribution per cohort customer.

  • Formula: (Net Revenue − COGS − Refunds) over cohort window / Customers in Cohort

LTV to CAC, Contribution

  • Formula: LTV Contribution / CAC

LTV Tax
Tax generated by a cohort over the window (Product Tax + Shipping Tax variants also available).

Cumulative LTV variants
Each LTV metric also has a cumulative variant that returns the running total per month-since-acquisition — used to plot LTV curves.


Tax

Tax
Total tax across orders.

  • Formula: Product Tax + Shipping Tax

Product Tax
Tax collected on products.

Shipping Tax
Tax collected on shipping.

Tax less Refunds
Tax net of refunded tax.


Inventory

# SKUs
Number of unique SKUs matching your filters.

Daily Rate of Sale
Average units sold per day over the selected period.

  • Formula: Units Sold / Days in Period

Option Count
Number of product options (variants).


Accounting

Metrics from your connected accounting platform (for example Xero, QuickBooks or Sage). Figures are scoped per accounting entity for multi-entity companies to avoid double-counting.

Revenue (Accounting)
Total income recognised in the accounting ledger (P&L) over the selected period. Scope by accounting entity for multi-entity companies.

Total Expenses (Accounting)
Total expenses recognised in the accounting ledger (P&L) over the selected period.

Cost of Goods Sold (Accounting)
Cost of sales from the accounting ledger (P&L). NOTE: the cost-of-sales vs operating split comes from an automatically suggested category tier, so treat it as an indicative classification rather than an authoritative one.

Operating Expenses (Accounting)
Operating expenses from the accounting ledger (P&L). NOTE: the operating vs cost-of-sales split comes from an automatically suggested category tier, indicative, not authoritative.

Net Income (Accounting)
Revenue minus total expenses from the accounting ledger (P&L) over the selected period.

  • Formula: Revenue (Accounting) − Total Expenses (Accounting)

Gross Profit (Accounting)
Revenue minus cost of goods sold from the accounting ledger (P&L). Relies on an automatically suggested cost-of-sales classification, so treat as indicative.

  • Formula: Revenue (Accounting) − Cost of Goods Sold (Accounting)

Gross Margin % (Accounting)
Gross profit as a percentage of revenue. Relies on an automatically suggested cost-of-sales classification, so treat as indicative.

  • Formula: Gross Profit (Accounting) / Revenue (Accounting)

Net Margin % (Accounting)
Net income as a percentage of revenue over the selected period.

  • Formula: Net Income (Accounting) / Revenue (Accounting)

Total Assets (Accounting)
Total assets on the balance sheet as at the end of the selected period. Point-in-time balance, not a sum over time.

Total Liabilities (Accounting)
Total liabilities on the balance sheet as at the end of the selected period. Point-in-time balance, not a sum over time.

Total Equity (Accounting)
Total equity on the balance sheet as at the end of the selected period, including retained earnings. Point-in-time balance, not a sum over time.

Cash (Accounting)
Cash and cash-equivalent balances (bank accounts) on the balance sheet as at the end of the selected period, from the accounting ledger. Point-in-time balance, not a real-time bank feed.

Journal Entries (Accounting)
Number of distinct journal entries posted to the accounting ledger over the selected period. A proxy for bookkeeping activity volume, not a financial total.

Journal Lines (Accounting)
Number of individual journal lines (debit/credit postings) recorded in the accounting ledger over the selected period. Finer-grained than Journal Entries; one entry typically has two or more lines.

Ledger Account
The account in your chart of accounts (for example "Marketing" or "Employee Wages and Salaries") that a transaction is posted to. Classified by account category rather than account type.

Account Category
The Income / Expense / Asset / Liability / Equity classification a ledger account rolls up into. This, not account type, determines whether a balance counts as income, an expense, an asset, a liability, or equity.

  • Journal-line data is compiled independently from the P&L and balance sheet, and won't necessarily tie out exactly at the line level. Best used to look up specific transactions, not to rebuild a financial total.

  • If you have multiple accounting entities connected, figures may need to be scoped per entity to avoid double-counting.


Need a metric that isn't listed here? Get in touch — we're regularly expanding what's available.

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