# SendLane

ReferralHero allows you to automatically sync your subscribers with a SendLane list of your choice.

To connect your Sendlane account:

1. go to your Campaign Dashboard > *Edit Campaign > Integrations > SendLane* and click on **Connect your Sendlane account** 
2. In the popup, enter your API Key, your HASH Key and your DOMAIN (You can find those by going to your Sendlane account, under *Account Settings)* 
3. After you connect your account, choose a list from the drop-down and save the changes.

{% hint style="info" %}
If you create or remove lists in your Sendlane account and need to update the lists shown in the dropdown on ReferralHero, just click on the **Update lists** link .
{% endhint %}

### Custom fields

When a person signs up we send a bunch of extra data to SendLane that is stored in your list's custom fields.

The Custom Fields we send are:

| CUSTOM FIELD     | Description                                        |
| ---------------- | -------------------------------------------------- |
| **SUB\_ID**      | Subscriber's id                                    |
| **EX\_FIELD**    | Subscriber's extra field value                     |
| **EX\_FIELD\_2** | Subscriber's second extra field value              |
| **REF\_CODE**    | Subscriber's unique referral code                  |
| **REF\_LINK**    | Subscriber's unique referral link                  |
| **TOT\_REF**     | Subscriber's total number of referrals             |
| **REF\_SOURCE**  | Subscriber's source. If empty value will be "None" |
| **LAST\_REF**    | Timestamp of last referral                         |