> ## Documentation Index
> Fetch the complete documentation index at: https://flatfileinc-remove-rss-json.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Field Options

> configurable properties for a Field

<ParamField path="key" type="string" required>
  The system name of this field. Primarily informs JSON and egress structures.
</ParamField>

<ParamField path="type" required>
  One of `string`, `number`, `boolean`, `date`, `enum`, `reference`. Defines the
  handling of this property. See [Field Types](./field-types) for more
  information.
</ParamField>

<ParamField path="label" default="key" type="string">
  A user-facing descriptive label designed to be displayed in the UI such as a
  table header.
</ParamField>

<ParamField path="description" type="string">
  A long form description of the property intended to be displayed to an end
  user.
</ParamField>

<ParamField path="constraints" default="[]" type="array">
  An array of system level Validation Rules meant to be applied after hooks are
  run.
</ParamField>

<ParamField path="config" default="{}" type="object">
  Configuration relevant to the type of column. See property documentation
  below.
</ParamField>

<ParamField path="multi" default="false" type="boolean">
  Will allow multiple values and store / provide the values in an array if set.
  Not all field types support arrays.
</ParamField>

<ParamField path="meta" default="{}" type="object">
  Arbitrary object of values to pass through to hooks and egress
</ParamField>