# Scalars

> The custom scalars the storefront graph uses, and how each is written.

Source: https://storeware.ai/docs/api-reference/storefront-graphql/scalars

## CurrencyCode

An ISO 4217 currency code, three uppercase letters.

## MinorUnits

An amount in the minor unit of its currency, as a base-10 integer in a string. 1999 is £19.99, and also ¥1999, since the yen has no minor unit.