Boston — Toast, the all-in-one digital technology platform built for restaurants, has acquired Sling, a leading employee scheduling, communication and management solution. Through features including scheduling templates, in-app messaging and multi-location team management, Sling helps restaurants staff more efficiently and better manage labor costs. The addition of Sling adds to Toast’s growing suite of Toast Payroll & Team Management products, including Toast Payroll, Toast Tips Manager and Toast Pay Card & PayOut. Through its Team Management Suite, Toast can empower restaurants to simplify scheduling and communication across their team, control …