| Name | Type | Description | Notes |
|---|---|---|---|
| related_object_type | String | Defines the related object, e.g. `voucher`. | [optional][default to 'voucher'] |
| related_object_id | String | Unique related object ID assigned by Voucherify, e.g. `v_lfZi4rcEGe0sN9gmnj40bzwK2FH6QUno` for a voucher. | [optional] |