# TalonOne.UpdateReferral ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **friendProfileIntegrationId** | **String** | An optional Integration ID of the Friend's Profile. | [optional] **startDate** | **Date** | Timestamp at which point the referral code becomes valid. | [optional] **expiryDate** | **Date** | Expiration date of the referral code. Referral never expires if this is omitted. | [optional] **usageLimit** | **Number** | The number of times a referral code can be used. This can be set to 0 for no limit, but any campaign usage limits will still apply. | [optional] **attributes** | [**Object**](.md) | Arbitrary properties associated with this item. | [optional]