Capabilities power [optional features](/docs/apps/build/custom-data/optional-features) for metafield definitions. You can enable the following `capabilities`:

- **[`smartCollectionCondition`](#smart-collection)**: Create an automated collection based on metafield values for a given definition.
- **[`adminFilterable`](#admin-filterable)**: Filter supported owner types based on metafield values for a definition in the Shopify admin and GraphQL Admin API.
- **[`uniqueValues`](#unique-values)**: Enforce unique metafield values for a definition.

## Smart collection

An automated collection, also known as a smart collection, is a grouping of products that's defined by a set of rules. Shopify automatically changes the contents of an automated collection based on the configured rules. You can create rules with metafield definitions to automatically update the contents of an automated collection based on product or variant metafields.

Smart collections are available for the following metafield types:

| Metafield definition type | Supported conditions |
|---------------------------|----------------------|
| True or false | equals |
| Integer | equals<br>greater than<br>less than |
| Decimal | equals<br>greater than<br>less than |
| Rating | equals<br>greater than<br>less than |
| Single line text | equals |
| Metaobject reference | equals |

### Enabling the smart collection capability

Enable this capability using either:

- [`metafieldDefinitionUpdate`](/docs/api/admin-graphql/latest/mutations/metafieldDefinitionUpdate)
- [`metafieldDefinitionCreate`](/docs/api/admin-graphql/latest/mutations/metafieldDefinitionCreate)

The following example shows how to update a metafield definition with the `smartCollectionCondition` set to `true` to enable the smart collection capability:

<p>
<div class="react-stacked-code-block ThemeMode-dim" data-preset="stacked">
<script data-option="title" data-value="POST https://{shop}.myshopify.com/admin/api/{api_version}/graphql.json"></script>


<p>
   <div class="react-code-block" data-preset="basic">
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   </div>

   </div>
   </div>

   <script data-option="title" data-value="GraphQL mutation"></script>

   <script type="text/plain" data-language="graphql">
   RAW_MD_CONTENTmutation metafieldDefinitionUpdate($definition: MetafieldDefinitionUpdateInput!) {
     metafieldDefinitionUpdate(definition: $definition) {
    userErrors {
      field
      message
    }
    updatedDefinition {
      key
      name
      namespace
      ownerType
      id
      capabilities {
        smartCollectionCondition {
          enabled
            }
          }
        }
     }
   }
   END_RAW_MD_CONTENT</script>

   </div>
   </p>

<p>
<div class="react-code-block" data-preset="basic">
<div class="react-code-block-preload ThemeMode-dim">
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</div>

</div>
</div>

<script data-option="title" data-value="Variables"></script>

<script type="text/plain" data-language="json">
RAW_MD_CONTENT{
  "definition": {
    "namespace": "custom",
    "key": "material",
    "name": "material",
    "ownerType": "PRODUCT",
    "type": "single_line_text_field",
    "capabilities": {
      "smartCollectionCondition": {
        "enabled": true
      }
    }
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>


</div>
</p>


### Using metafields in a smart collection

After the capability is enabled, you can create a smart collection either in the Shopify admin or with the following mutations:

- To create a smart collection, you can use the [`collectionCreate`](/docs/api/admin-graphql/latest/mutations/collectionCreate) mutation.
- To update an existing collection, you can use the [`collectionUpdate`](/docs/api/admin-graphql/latest/mutations/collectionUpdate) mutation.

In the following example, the smart collection is set to include products that have a metafield definition of type metaobject reference with the metaobject representing `blue`, from the standard `color` metafield definition.

<p>
<div class="react-stacked-code-block ThemeMode-dim" data-preset="stacked">
<script data-option="title" data-value="POST https://{shop}.myshopify.com/admin/api/{api_version}/graphql.json"></script>


<p>
   <div class="react-code-block" data-preset="basic">
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   </div>

   </div>
   </div>

   <script data-option="title" data-value="GraphQL mutation"></script>

   <script type="text/plain" data-language="graphql">
   RAW_MD_CONTENTmutation CreateCollection($collection: CollectionInput!) {
     collectionCreate(input: $collection) {
    collection {
      id
      title
      descriptionHtml
      sortOrder
      handle
      templateSuffix
      ruleSet {
        appliedDisjunctively
        rules {
          column
          relation
          condition
       }
      }
    }
    userErrors {
      field
      message
      }
     }
   }
   END_RAW_MD_CONTENT</script>

   </div>
   </p>

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</div>

</div>
</div>

<script data-option="title" data-value="Variables"></script>

<script type="text/plain" data-language="json">
RAW_MD_CONTENT{
  "collection": {
    "title": "Blue products collection",
    "metafields": [],
    "ruleSet": {
      "appliedDisjunctively": false,
      "rules": [
      {
          "column": "PRODUCT_METAFIELD_DEFINITION",
          "relation": "EQUALS",
          "condition": "gid://shopify/Metaobject/112030056537",
          "conditionObjectId": "gid://shopify/MetafieldDefinition/23417389145"
        }
      ]
    }
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>


</div>
</p>


## Admin filterable

The admin filterable capability allows you to use a metafield definition and its values to filter resource lists in the Shopify admin. This capability makes it easier for merchants to find and manage resources such as products based on their specific metafield values. A more [detailed guide is available](/docs/apps/build/custom-data/metafields/query-by-metafield-value).

The capability is available for the following metafield types:

| Metafield Type |
|----------------|
| True or false |
| Single line text |
| Single line text (list) |
| Product reference |
| Product reference (list) |
| Collection reference |
| Collection reference (list) |
| Page reference |
| Page reference (list) |
| Metaobject reference |
| Metaobject reference (list) |
| Company reference |
| Company reference (list) |

To enable this capability, you can use the [`metafieldDefinitionUpdate`](/docs/api/admin-graphql/latest/mutations/metafieldDefinitionUpdate) mutation.

The following example shows how to create a metafield definition with `adminFilterable` set to `true` to enable the admin filterable capability:

<p>
<div class="react-stacked-code-block ThemeMode-dim" data-preset="stacked">
<script data-option="title" data-value="POST https://{shop}.myshopify.com/admin/api/{api_version}/graphql.json"></script>


<p>
   <div class="react-code-block" data-preset="basic">
   <div class="react-code-block-preload ThemeMode-dim">
   <div class="react-code-block-preload-bar basic-codeblock"></div>
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   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>

   </div>
   </div>

   <script data-option="title" data-value="GraphQL mutation"></script>

   <script type="text/plain" data-language="graphql">
   RAW_MD_CONTENTmutation metafieldDefinitionUpdate($definition: MetafieldDefinitionUpdateInput!) {
     metafieldDefinitionUpdate(definition: $definition) {
    userErrors {
      field
      message
    }
    updatedDefinition {
      key
      name
      namespace
      ownerType
      id
      capabilities {
        adminFilterable {
          enabled
            }
          }
        }
     }
   }
   END_RAW_MD_CONTENT</script>

   </div>
   </p>

<p>
<div class="react-code-block" data-preset="basic">
<div class="react-code-block-preload ThemeMode-dim">
<div class="react-code-block-preload-bar basic-codeblock"></div>
<div class="react-code-block-preload-placeholder-container">
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>

</div>
</div>

<script data-option="title" data-value="Variables"></script>

<script type="text/plain" data-language="json">
RAW_MD_CONTENT{
  "definition": {
    "namespace": "custom",
    "key": "material",
    "name": "material",
    "ownerType": "PRODUCT",
    "type": "single_line_text_field",
    "capabilities": {
      "adminFilterable": {
        "enabled": true
      }
    }
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>


</div>
</p>


### Using metafields to filter products

When the admin filterable capability is enabled, you can filter products based on a metafield definition value. In the following example, the query returns products that have a metafield definition value of `blue` for the `color` standard metafield definition.

<p>
<div class="react-stacked-code-block ThemeMode-dim" data-preset="stacked">
<script data-option="title" data-value="POST https://{shop}.myshopify.com/admin/api/{api_version}/graphql.json"></script>


<p>
<div class="react-code-block" data-preset="basic">
<div class="react-code-block-preload ThemeMode-dim">
<div class="react-code-block-preload-bar basic-codeblock"></div>
<div class="react-code-block-preload-placeholder-container">
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>

</div>
</div>

<script data-option="title" data-value="GraphQL mutation"></script>

<script type="text/plain" data-language="graphql">
RAW_MD_CONTENTquery Products {
  products (first: 10, query: "metafields.shopify.color-pattern:\"9047670806\"") {
    edges {
      node {
        id
        title
        handle
        }
       }
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>


</div>
</p>


## Unique values

The unique values capability ensures all values of a metafield definition are unique. This capability is only available for `single_line_text_field`, `url`, and `integer` definition types. A more [detailed guide is available](/docs/apps/build/custom-data/metafields/working-with-custom-ids).

### Limitations

You can only enable the unique values capability on new definitions or definitions without existing metafields.

### Example

The following example shows how to create a metafield definition with `uniqueValues` set to `enabled` to enable the unique values capability.

<p>
<div class="react-stacked-code-block ThemeMode-dim" data-preset="stacked">
<script data-option="title" data-value="POST https://{shop}.myshopify.com/admin/api/{api_version}/graphql.json"></script>


<p>
   <div class="react-code-block" data-preset="basic">
   <div class="react-code-block-preload ThemeMode-dim">
   <div class="react-code-block-preload-bar basic-codeblock"></div>
   <div class="react-code-block-preload-placeholder-container">
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>
   <div class="react-code-block-preload-code-container">
   <div class="react-code-block-preload-codeline-number"></div>
   <div class="react-code-block-preload-codeline"></div>
   </div>

   </div>
   </div>

   <script data-option="title" data-value="GraphQL mutation"></script>

   <script type="text/plain" data-language="graphql">
   RAW_MD_CONTENTmutation CreateMetafieldDefinition($definition: MetafieldDefinitionInput!) {
     metafieldDefinitionCreate(definition: $definition) {
    createdDefinition {
      id
      name
      namespace
      key
      capabilities {
        uniqueValues {
          enabled
        }
      }
    }
    userErrors {
      field
      message
      code
    }
     }
   }
   
   END_RAW_MD_CONTENT</script>

   </div>
   </p>

<p>
<div class="react-code-block" data-preset="basic">
<div class="react-code-block-preload ThemeMode-dim">
<div class="react-code-block-preload-bar basic-codeblock"></div>
<div class="react-code-block-preload-placeholder-container">
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>
<div class="react-code-block-preload-code-container">
<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>

</div>
</div>

<script data-option="title" data-value="Variables"></script>

<script type="text/plain" data-language="json">
RAW_MD_CONTENT{
  "definition": {
    "name": "My Unique Field",
    "namespace": "custom",
    "key": "field",
    "description": "A custom field with unique values",
    "type": "single_line_text_field",
    "ownerType": "PRODUCT",
    "capabilities": {
      "uniqueValues": {
        "enabled": true
      }
    },
    "pin": true
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>


</div>
</p>