Update Cart Metafield
Update a Metafield, by cart_id.
Authentication
X-Auth-Tokenstring
### OAuth scopes
| UI Name | Permission | Parameter |
|:--------|:-----------|:----------|
|Carts|modify|`store_cart`|
|Carts |read-only|`store_cart_read_only`|
|Information & Settings | modify | `store_v2_information`|
|Information & Settings | read-only| `store_v2_information`|
### Authentication header
| Header | Argument | Description |
|:-------|:---------|:------------|
| `X-Auth-Token` | `access_token` | For more about API accounts that generate `access_token`s, see our [Guide to API Accounts](/developer/docs/overview/api-accounts#api-accounts). |
### Further reading
For example requests and more information about authenticating BigCommerce APIs, see [Authentication and Example Requests](/developer/docs/overview/api-accounts#x-auth-token-header-example-requests).
For more about BigCommerce OAuth scopes, see our [Guide to API Accounts](/developer/docs/overview/api-accounts#oauth-scopes).
For a list of API status codes, see [API Status Codes](/developer/api-reference/rest/overview#rest-http-status-codes).
Path parameters
cart_id
metafield_id
Request
A Metafield object.
permission_set
Determines the visibility and writeability of the field by other API consumers.
| Value | Description |
| :--- | :--- |
| `app_only` | Private to the app that owns the field. |
| `read` | Visible to other API consumers. |
| `write` | Open for reading and writing by other API consumers. |
| `read_and_sf_access` | Visible to other API consumers, including on the storefront. |
| `write_and_sf_access` | Open for reading and writing by other API consumers, including on the storefront. |
Allowed values:
namespace
Namespace for the metafield, for organizational purposes.
key
The name of the field, for example: location_id, color.
value
The value of the field, for example: 1, blue.
description
Description for the metafields.
Response
A Metafield and metadata.
data
Allows app partners to write custom data to various resources in the API.
meta
Response metadata.
Errors
400
Bad Request Error
422
Unprocessable Entity Error