# Get a list of custom field definitions

Endpoint: GET /custom-field-definitions
Version: 1.44
Security: bearerAuth

## Query parameters:

  - `page` (integer, required)
    Page of results to show
    Example: 1

  - `pageSize` (integer, required)
    Results to return per page
    Example: 100

  - `sort` (string)
    Comma-delimited list of the fields to sort by - defaults to ascending order, suffix :desc to change
    Example: "id,name | name:desc"

  - `fields` (string)
    Comma-delimited list of the field(s) to return if only a subset is required
    Example: "id,name"

  - `entityLevel` (string)
    Filter by entity level (e.g. CUSTOMER, SITE)
    Enum: "USAGE_PRODUCT", "RENTAL_PRODUCT", "RENTAL_PRODUCT_INVENTORY", "SITE", "CUSTOMER"

## Response 200 fields (application/json):

  - `id` (integer)
    Unique identifier for the custom field definition
    Example: 1

  - `label` (string, required)
    Display label for the custom field
    Example: "Additional field definition label"

  - `entityLevel` (string, required)
    Indicates the entity level the custom field applies to
    Enum: "USAGE_PRODUCT", "RENTAL_PRODUCT", "RENTAL_PRODUCT_INVENTORY", "SITE", "CUSTOMER"


## Response 400 fields

## Response 401 fields

## Response 500 fields