Billing and revenue systems are a necessity if you ever plan to monetize your business. If you’ve spent any time with them, you know that billing systems are complicated, and no one wants to think about them. When they work, it’s great and everyone is happy. I’ve seen them likened to an octopus, and I fully agree. They touch finance, product, experience, customer support, customers, legal, compliance, sales, and sometimes more. Billing is hard, intertwined, and complicated. Because it’s so inter...