If a conversion event for a referral program is set to a custom event, then you need to send the referral code in the payload to make a record of the conversion event.
| Name | Type | Description |
|---|---|---|
| code | String | A code through which a new visitor has been referred to a service. |
| referrerId | String | Unique ID of the referring person - it is optional and not required if the referral code is provided. |