I have multiple customers in Clover, but none are syncing with ListBuilder. Why?

Although there are a number of customers in your Clover account, please check to see if they all have an email address and are opted in to marketing.

MailChimp's terms of service require that customers are "opted in" to marketing in order for us to transfer customers into your account.

In order for your customers to sync with ListBuilder, please confirm that customers are (1) opted in and (2) have a valid email. Our system will then automatically add them to your connections in ListBuilder.