Glossary

Client ID
Your shop's number in FitMyType. Every snippet, tag and API call carries it. It is not a secret.
Product reference
Your own id of a product (productId). The widget, the tag and your catalogue must use the same one.
Size chart
The table of sizes and body measurements a product is linked to. FitMyType recommends from it.
Size system
A way of naming sizes, such as EU, UK, US or S/M/L.
Widget
The size button on your product page and the size finder it opens.
Size finder
The short questionnaire the shopper answers after clicking the button. It runs in a frame from FitMyType.
Recommendation
The size FitMyType suggests for one shopper and one product, or an answer between two sizes.
Tracking tag (fmttag)
The small script that sends add to cart and orders from sites that are not on Shopify.
Pixel
Shopify's way to send customer events from the storefront and checkout. FitMyType's app adds one.
Event
A record of something a shopper did, such as a click, an add to cart or an order.
Tracking id
A random id kept in the shopper's browser after analytics consent, which links a visit to its cart and order.
The shopper's yes to analytics cookies. FitMyType sends no event before it.
Shop country
The country a shop sells in, as a two-letter code, or WW for a worldwide shop.
Channel
A free label for where a sale happens, such as web or app.
Back-office
The FitMyType admin site where you manage products, size charts, the widget's look and your dashboards.
Tracking Debug
The back-office page that shows each event from your shop as it arrives.