> ## Documentation Index
> Fetch the complete documentation index at: https://docs.smartwpplugins.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Items
> Store products, variations, quantity rules, and items that are not in your catalogue
export const Media = ({kind = 'Screenshot', children}) =>
{kind === 'Video' ? '▶️' : '🖼️'}
{kind} pending
{children}
;
export const Pro = () =>
Pro
;
An item is one line the link will add to the cart. A preset can hold as many as you like, and the order you put them in is the order they appear.
The Items card with four rows, one expanded
## Store products
Click **Add store product** and search by name or SKU.
The picker offers simple products, variable products, and their subscription equivalents. Grouped, external and composite products are not offered, because none of them can be added to a cart by product ID — a preset has no product page to post a form from.
### Variations
Pick a variable product and the row asks you to answer every attribute.
This is not optional. A variation with an attribute left as "Any" passes WooCommerce's own catalogue checks and then fails at `add_to_cart()` with *"Size is a required field"* — and a preset has nobody to ask. Answering at build time is the only point where somebody can.
If you later delete a variation or remove one of its terms, the preset's stored answer stops matching. The health panel says so, and the listing flags the preset with a stock problem.
## Quantity
Every item has a quantity — how many the link adds. Beyond that, you decide whether the customer may change it once it is in the cart.
| Control | Default | Effect |
| ------------------------------------ | ------------ | ------------------------------------------------------------------------------- |
| Let the customer change the quantity | Off | When off, the quantity box in the cart is locked and shows a notice if they try |
| Minimum | 1 | The lowest they may go, when changing is allowed |
| Maximum | 0 (no limit) | The highest they may go at the preset price |
Quantity rules cap what one claim holds. They are a different question from [purchase limits](/cartpresets/building/purchase-limits), which cap how many times the offer may be claimed at all.
## Removable
By default, removing one item of a preset from the cart removes the whole preset — and says so. That is deliberate: the price was quoted for the set, and letting a customer delete the expensive half of a discounted pair would hand them the discount without the bundle.
Turn on **Customer can remove this item** on a specific row to exempt it. Useful for an optional extra riding along with a fixed core.
## Coupons
Each item decides whether store coupons may discount it. The default is **no** — a preset price is already a discount, and stacking a coupon on top is usually not what you meant.
Turn on **Allow coupons on this item** where you do want it, for example a full-price add-on inside an otherwise discounted set.
This is per item, so one preset can have coupon-able and coupon-proof lines side by side.
## When an item cannot be added
Products go out of stock, get deleted, or are limited to one per order. What the link does then is a store-wide setting under **Settings → Cart behavior → If an item cannot be added**:
| Choice | What happens | Key |
| ----------------------- | -------------------------------------------------------------------- | ----------- |
| Skip the item | Everything else is added, with a cart notice | `skip` |
| Refuse the whole preset | Nothing is added, and the preset reads as unavailable | `none` |
| Allow a backorder | The item is added anyway, where your store already allows backorders | `backorder` |
**Skip** is the default, and the right answer for most stores — a customer who wanted five things should not leave with none because one was out of stock.
**Refuse** is for sets that only make sense whole: a machine and the one cable that fits it.
The wording in each case is yours to change. See [Cart notices and wording](/cartpresets/links/wording).
## Custom items
A custom item is a line that is not a product in your catalogue at all — a setup fee, a deposit, a printed insert, a one-off service.
It carries its own:
* **Name** and **price**
* **Description**, shown as a second row on the cart line
* **Image**
* **Shipping**, if it ships — weight, dimensions, and shipping class
Nothing is added to your catalogue. The item never appears in search, in a category, or in your products list.
A custom item row expanded, showing the name, price, description, image and shipping fields
### How they reach the cart
WooCommerce cannot put a line in a cart without a product behind it, so custom items ride on a single hidden **carrier product** — one for your whole store, virtual, hidden from the catalogue, excluded from search and sitemaps. The line is then renamed and repriced for that item.
Two custom items in one cart are two lines on the same carrier product, priced independently. See [The carrier product](/cartpresets/settings/carrier-product).
On the free build, a custom item left behind by a Pro build stays with the preset but is **not added to the cart**. The editor marks it with a badge, leaves it out of the pricing summary and unit count, and the health panel says so — rather than quoting you a total the cart will not charge.
## Item discounts
Each item can carry its own discount before the preset-wide one is applied. That is covered in full under [Pricing and discounts](/cartpresets/building/pricing).