# MetafieldDefinitionIdentifier - admin - OBJECT
Version: unstable

## Description
Identifies a metafield definition by its owner type, namespace, and key.

### Access Scopes



## Fields
* [key](/docs/api/admin/unstable/scalars/String): String! - The unique identifier for the metafield definition within its namespace.
* [namespace](/docs/api/admin/unstable/scalars/String): String! - The container for a group of metafields that the metafield definition is associated with.
* [ownerType](/docs/api/admin/unstable/enums/MetafieldOwnerType): MetafieldOwnerType! - The resource type that the metafield definition is attached to.

## Connections



## Related queries

## Related mutations
* [metafieldDefinitionDelete](/docs/api/admin/unstable/mutations/metafieldDefinitionDelete) Delete a metafield definition.
Optionally deletes all associated metafields asynchronously when specified.

## Related Unions

## Examples