# Manage Application cart item filters

> Application cart item filters allow you to filter items by the value of a certain attribute, such as SKU or product category. They can be used in more than one campaign of your Application.

> For the complete documentation index, see [llms.txt](https://docs.talon.one/llms.txt).

For example, you can create an Application cart item filter
for a [collection of items](/docs/product/rules/manage-collections.md)
you want to exclude from all your promotional campaigns in a given Application.
You can then select this filter when you [create a cart item filter][create-cif]
in your campaign.

:::note Limitations
- [Location and time attributes][set-attrib] are not supported in Application cart item filters.
  To use them, consider creating a cart item filter in your campaign instead.
  This allows you to create more complex and flexible filters for your cart items.
  See [Cart item filters][cif].
- You cannot [create templates][create-template] from campaigns with Application cart item filters.
:::

## List Application cart item filters

To list the available Application cart item filters:

1. Open an Application.
1. On the left-side menu of your Application, click <Cart className="icon" /> **Cart Item Filters**.

The page lists the newest filter first along with the number of references
made to each filter. The [default filter](#default-filter) is marked <Default className="icon" />.

## Create an Application cart item filter

To create an Application cart item filter:

1. On the left-side menu of your Application, click <Cart className="icon" /> **Cart Item Filters**.
1. Click <Add className="icon" /> **Create Cart Item Filter**.

   :::tip
   If a filter exists, in the top-right corner of the page,
   click <Add className="icon" /> **Create Filter**.
   :::

1. In the **Filter attributes** section, define the attribute values by which you can filter items
   in your campaign rules.

   - To add a filter attribute,
     click <Add className="icon" /> **Add Filter Attribute**.
     Add as many as you need in the order you want to apply them.

1. In **Filter name**, type a name for your filter.

   :::note
   - This filter name is displayed in the **Rules** section
     of the <RuleBuilder className="icon"/> **Rule Builder**.
   - You cannot rename the filter after it is created.
   :::

1. (Optional) In **Description**, describe your filter.
1. To [set the filter as the default selection](#default-filter)
   in campaigns that use [cart item filters][cif], select **Default filter**.
1. Click **Create Cart Item Filter**.

The Application cart item filter is created. Additionally,
the following attributes
are available in the [Attribute Selector](/docs/product/rules/overview.md#attribute-selector):

- <Attribute type="filter" name="<Filter name> item count"/>
- <Attribute type="filter" name="<Filter name> total price"/>

## Edit an Application cart item filter

You can edit the filter description, add or remove filter attributes,
and set the filter as the [default filter](#default-filter).
The changes are applied to all the campaigns where the filter is referenced.

To edit an Application cart item filter:

1. On the left-side menu of your Application, click <Cart className="icon" /> **Cart Item Filters**.
1. In the **Actions** column of a filter,
   click <ExtV className="icon" /> > <Edit className="icon"/> **Edit Cart Item Filter**.
1. Make the required changes to the filter.

   :::note
   You cannot rename the cart item filter.
   :::

1. Click **Save**.
1. In the confirmation window, click **Save**.

## Set the default Application cart item filter {#default-filter}

The default filter is automatically selected when you [create rules][create-rules]
in campaigns with cart item filters.
The default status is indicated by <Default className="icon"/>.
An Application can have only one default filter.

To set the default Application cart item filter:

1. On the left-side menu of your Application, click <Cart className="icon" /> **Cart Item Filters**.
1. In the **Actions** column of a filter,
   click <ExtV className="icon" /> > <Default className="icon"/> **Make Default**.

## Delete an Application cart item filter

You can delete an Application cart item filter if it is not referenced in a campaign.

:::tip
The **References** column on
the [<Cart className="icon" /> **Cart Item Filters**](#list-application-cart-item-filters) page
indicates how many times a filter is referenced in campaigns.
To view those references, click the value in the column.
:::

To delete an Application cart item filter:

1. On the left-side menu of your Application, click <Cart className="icon" /> **Cart Item Filters**.
1. In the **Actions** column of a filter,
   click <ExtV className="icon" /> > <Delete className="icon"/> **Delete Cart Item Filter**.
1. In the confirmation window, click <Delete className="icon"/> **Delete Cart Item Filter**.

## Related pages

- [Cart item filters][cif]
- [Create a discount using cart item filters](/docs/product/tutorials/coupons/cart-item-filters-discount.md)
- [Buy 3 and pay for 2](/docs/product/tutorials/coupons/buy-3-pay-2.md)
- [Campaign evaluation](/docs/product/applications/evaluation-order-for-rules-and-filters.md)
- [Create and manage item bundles](/docs/product/rules/create-and-manage-bundles.md)

[cif]: /docs/product/rules/cart-item-filters/overview.md
[create-rules]: /docs/product/rules/create-and-manage-rules.md
[create-cif]: /docs/product/rules/cart-item-filters/manage-cart-item-filters.md#create-a-cart-item-filter
[set-attrib]: /docs/dev/concepts/attributes.md#set-attributes
[st-rules]: /docs/product/rules/overview.md#strikethrough-rules
[create-template]: /docs/product/campaigns/templates/create-templates.md