POST https://api.copper.com/developer_api/v1/custom_field_definitions
Field
Type
Details
Default
name*
string
Name of the Custom Field Definition
data_type*
string
One of the following strings: "Checkbox", "Currency", “Date", "Dropdown", "Float", "MultiSelect", "Percentage", “String", "Text", "URL"
canonical_name
string
A unique string identifier for the Custom Field Definition, used in workflow automation rules. Presented as the "Field Key" via the Webapp. Will be automatically downcased on creation.
available_on
string[]
List of strings containing one or more of the following: “lead”, “person”, “opportunity”, “company”, "project", "task"
is_filterable
boolean
Indicates if the Custom Field Definition can be included in filters. Defaults to false if not provided.
options
number[]
Array of options for Dropdown and MultiSelect fields. A minimum of one option is required for Dropdown and a minimum of 2 options is required for MultiSelect