Klaviyo is a cloud-based email marketing solution for e-commerce businesses. Key features include integration with multiple platforms, audience segmentation, and performance reporting. … Users can segment their customers based on their past purchases and send customized email campaigns. Klaviyo for Shopify is an automated funnel that helps to retain the visitors landing on a particular website or Shopify store. Klaviyo makes it easy to see stats on all your emails down to the dollar amount generated by each specific email. Although ordinary email marketing might be time-consuming at first, Klaviyo email marketing automation is the best tool you can give to your eCommerce store.