| Name | Type | Description | Notes |
|---|---|---|---|
| handle | string | Optional per subscription unique handle for the subscription add-on. If not defined the handle will default to the add-on handle, this means that by default an add-on can only be attached once to each subscription. The handle can be used to link the subscription add-on to an entity like computer serial number or vehicle license plate. | |
| quantity | int | Optional quantity of the of the add-on for this subscription. Defaults to 1. May only be provided for add-on with type quantity. |
[optional] |
| amount | int | Optional custom fixed per quantity add-on price. If provided the add-on price billed for each billing period will be overridden by this price. Implicitly defines fixed_amount as true. Cannot be provided with fixed_amount false. |
[optional] |
| add_on | string | Add-on for subscription add-on | |
| fixed_amount | bool | Whether the price of the subscription add-on should be fixed to the current price of add-on, or the price should follow the add-on price. Defaults to true. If set to false the price of the add-on will be determined by the add-on price at the time of subscription billing. | [optional] |
| amount_incl_vat | bool | Whether the optional amount is including VAT. Defaults to true. | [optional] |