# MetafieldDefinitionConstraints - admin - OBJECT
Version: unstable

## Description
The [constraints](https://shopify.dev/apps/build/custom-data/metafields/conditional-metafield-definitions)
that determine what subtypes of resources a metafield definition applies to.

### Access Scopes



## Fields
* [key](/docs/api/admin/unstable/scalars/String): String - The category of resource subtypes that the definition applies to.

## Connections
* [values](/docs/api/admin/unstable/connections/MetafieldDefinitionConstraintValueConnection): MetafieldDefinitionConstraintValueConnection!



## Related queries

## Related mutations

## Related Unions

## Examples