Make sure that `Track Custom Event` method is supported: https://docs.voucherify.io/v2018-08-01/reference#create-custom-event - `customer` and `event` are required - `metadata` is optional - `referral` is optional
Make sure that
Track Custom Eventmethod is supported: https://docs.voucherify.io/v2018-08-01/reference#create-custom-eventcustomerandeventare requiredmetadatais optionalreferralis optional