Invoices We Understand. Sales are one of the most significant aspects of your business. IT'S WHAT WE DO.There are numerous invoice options to make them your own. EASY Boulevard's invoices are designed to make tracking and staying on top of your sales easy. PROFESSIONAL Create professional, custom invoices you can print or email and include a convenient direct payment link. AUTOMATIC Everything is updated throughout — sales history, calendar follow-ups, inventory, account balances, and more.