Settings > Integration > Mailchimp
To integrate with Mailchimp, please follow the three steps below:

1. Login or sign up for a Mailchimp account here.

2. Create your contact list

All affiliates will be added to your contact list after you create one, allowing you to manage campaigns for your team.
In case you don't have a contact list, you can add contacts by clicking Add Your Contacts.
Now go to Audience > Audience dashboard > Manage Audience > View audiences.
Next, click Create Audience.

3. Get the MailChimp API key and integrate

Navigate your account setting:
Visit Extras tab > API keys.
In the APIs section, click Create a Key.
After creating the API key, copy it and go back to BixGrow > Settings > Integration > Mailchimp, then click Connect.
Paste the API key in and click Next.
You will then be required to choose a list from which to sync the affiliate contact. Once you've finished, click Save & Sync: