New customers that purchase something in Momence can automatically be added to your Mailchimp audience.
To integrate Mailchimp:
click Apps and Integrations > Integrations > Mailchimp > then sign in to your mailchimp account in a separate window.
Momence will need the following info from your Mailchimp account to set up the integration:
The video below will show you where in the mailchimp UI to find this info.