"Klaviyo, a marketing automation and customer data platform for B2C businesses, today announced a new integration with Square Online – Square’s ecommerce platform that helps sellers more easily run and grow their businesses. With this new integration, sellers can quickly sync real-time and historical data from Square Online into Klaviyo, including event-level data, profile properties, and catalog information and utilize that to deliver truly personalized experiences across their marketing channels, including email and SMS. For businesses using Square Point of Sale, Klaviyo will also receive customer purchase data made through in-person locations to help connect offline and online interactions."