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# Collection field enhancements

> Discover the latest enhancements to Webflow's APIs, including updates to the Data API and beta endpoints.

## Create reference fields

Create reference fields in a collection using the [create collection field](/data/v2.0.0-beta/reference/cms/collection-fields/create) endpoint.

To create a reference field, you'll need to:

* Set the `type` property in the `field` object to either `MultiReference` or `Reference`
* Include the `metadata` property with the `collectionId` of the target collection

```json
{
  "displayName": "Authors",
  "type": "Reference",
  "metadata": {
    "collectionId": "580e63fc8c9a982ac9b8b745"
  }
}

```

You can add reference fields in two ways:

* During initial collection creation via the [create collection](/data/v2.0.0-beta/reference/cms/collections/create) endpoint
* To an existing collection using the [create collection field](/data/v2.0.0-beta/reference/cms/collection-fields/create) endpoint

## Create multiple collection fields during collection creation

Create multiple collection fields during collection creation using the [create collection](/data/v2.0.0-beta/reference/cms/collections/create) endpoint. Collections are limited to 60 fields per collection.