Metrico glossary
Plain-language definitions for the metrics behind paid growth.
ROAS, MER, CPA, attribution, pixels, contribution, creative delivery, and the commerce metrics Shopify merchants see across Metrico.
Return on Ad Spend
ROAS compares revenue credited to advertising with the advertising spend used to generate that measured result.
Read definition →MERMarketing Efficiency Ratio
MER is a blended efficiency ratio commonly used to compare store revenue with total included marketing or paid-media spend.
Read definition →CPACost per Acquisition
CPA measures how much advertising spend is associated with each measured acquisition or conversion.
Read definition →CPMCost per Mille
CPM is the advertising cost per 1,000 impressions.
Read definition →CPCCost per Click
CPC measures advertising spend per measured click.
Read definition →CTRClick-Through Rate
CTR measures the share of measured impressions that generated the defined click action.
Read definition →AOVAverage Order Value
AOV is the average order revenue across the orders included in a selected period or cohort.
Read definition →DefinitionContribution Margin
Contribution margin is the revenue remaining after subtracting the variable costs included in the merchant's definition.
Read definition →DefinitionAttribution Window
An attribution window is the period after an eligible ad interaction during which a conversion can receive credit under a measurement system's rules.
Read definition →DefinitionView-Through Attribution
View-through attribution credits a conversion after a person was served or viewed an ad without a qualifying click, according to the provider's attribution rules.
Read definition →CAPIConversions API
A Conversions API is a server-side interface used to send eligible conversion or event data from a business system to an advertising platform.
Read definition →DefinitionAdvertising Pixel
A pixel is browser-side tracking code that records defined website events and sends eligible event data to an analytics or advertising system.
Read definition →DefinitionBlended ROAS
Blended ROAS commonly compares store revenue with total paid-media spend across the included channels.
Read definition →DefinitionAd Frequency
Ad frequency is the average number of times a measured person or account was served an ad during the selected period, according to the provider's reporting model.
Read definition →DefinitionConversion Rate
Conversion rate is the share of an eligible population that completed the defined conversion action.
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