Create a custom field on an item or rental. Specify the definition either by definitionId, or by key and ownerType.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
ID of the item or rental to attach the custom field to.
Value of the custom field.
ID of the custom field definition. Required if key/owner_type not provided.
Key of the custom field definition. Required with owner_type if definition_id not provided.
Type of owner resource. Required with key if definition_id not provided.
item, rental Custom field created successfully
Numeric ID of the custom field.
ID of the item or rental that owns this custom field.
Type of the owner resource.
Item, Rental ID of the custom field definition.
Key of the custom field definition.
Raw stored value of the custom field.
Typed JSON value of the custom field (format depends on definition type).