MetafieldDefinitionValidationStatus

All of this definition's metafields are valid.

Asynchronous validation of this definition's metafields is in progress.

Some of this definition's metafields are invalid.

Defines the structure, validation rules, and permissions for Metafield objects attached to a specific owner type. Each definition establishes a schema that metafields must follow, including the data type and validation constraints.

The definition controls access permissions across different APIs, determines whether the metafield can be used for filtering or as a collection condition, and can be constrained to specific resource subtypes.