---
title: CartCompletionActionRequired - Storefront API
description: The required completion action to checkout a cart.
api_version: 2026-04
source_url:
  html: https://shopify.dev/docs/api/storefront/latest/objects/CartCompletionActionRequired
  md: https://shopify.dev/docs/api/storefront/latest/objects/CartCompletionActionRequired.md
---

# Cart​Completion​Action​Required

object

The required completion action to checkout a cart.

## Fields

* action

  [Cart​Completion​Action](https://shopify.dev/docs/api/storefront/latest/unions/CartCompletionAction)

  The action required to complete the cart completion attempt.

* id

  [String!](https://shopify.dev/docs/api/storefront/latest/scalars/String)

  non-null

  The ID of the cart completion attempt.

***

## Map

### Possible type in

* [Cart​Completion​Attempt​Result](https://shopify.dev/docs/api/storefront/latest/unions/CartCompletionAttemptResult)