# Cart predicate language

Cart predicates read the current cart context.
Use them for cart discounts, shipping methods and rates, and payment-gateway eligibility.
A matching expression makes a rule eligible; the rest of its configuration still determines the result.

## Cart fields

| Field | Available values |
| --- | --- |
| `currency_code` | Currency code |
| `subtotal`, `total` | `cent_amount`, `currency_code` |
| `customer` | `id`, `email`, `group`, `groups` |
| `store`, `price_channel` | `id` |
| `shipping_address`, `billing_address` | Address fields, or null |
| `line_items` | Collection of line-item contexts |

For anonymous carts, customer identity strings are empty and `customer.groups` is empty.
Use `customer.groups.Contains(...)` when expressing membership in a group.
Missing store or price-channel IDs are empty strings in this context.

Address fields include `first_name`, `last_name`, `email`, `phone`, `company`, `address1`, `address2`, `city`, `zip_code`, `province`, `state`, and `country_code`.
Guard the address against null before accessing a field.
These predicate names are not the GraphQL address input's field names.

## Minimum basket amount


EUR 100 minimum

```text
currency_code == "EUR" && subtotal.cent_amount >= 10000

```


Use a currency condition whenever an amount rule can apply in several markets.

## Shipping country


Delivery to Denmark

```text
shipping_address != null && shipping_address.country_code == "DK"

```


A cart without a shipping address does not qualify for this condition.
Re-evaluate the returned shipping options after the address changes.

## Line-item context

Each line exposes `line_item_id`, `currency_code`, `quantity`, `amount`, `variant`, and `product`.
`amount.unit_price` and `amount.original_unit_price` expose `cent_amount` and `currency_code`.
`variant` exposes `id`, `name`, `sku`, and `weight_in_kg`.
`product` exposes `id`, `name`, `tags`, `categories`, and `collections`; category and collection entries expose `id`.


Cart contains an accessory

```text
line_items.any(item => item.product.tags.Contains("accessories"))

```


Weights use kilograms; money uses minor currency units.

## Line-item target predicates

A line-item discount target reads one line directly.
Use the same line fields without the `line_items` collection prefix:


Discount accessory lines

```text
product.tags.Contains("accessories")

```


Use `true` when every line should be eligible for the target.
A qualifying cart can have no matching target lines, so test both the cart rule and target.

Test missing addresses, anonymous and signed-in customers, multiple groups, and quantities on either side of the threshold.
See [Create a discount campaign](/guides/operations/discount-campaign) and [Predicate language](/concepts/predicate-language).