# ProductGroupSortKey

The set of valid sort keys for product group listings. Use this enum to specify how product groups should be sorted in list queries.

## Enum Definition

```graphql
enum ProductGroupSortKey {
  TITLE
}
```

## Values

| Value | Description |
|-------|-------------|
| TITLE | Sort product groups alphabetically by title |

## Example

```graphql
{
  productGroups(sortKey: TITLE, first: 10) {
    edges {
      node {
        id
        title
      }
    }
  }
}
```

## Related Types

- `ProductGroup`
- `ProductGroupConnection`
- `ProductGroupEdge`