This document discusses scaling sales and billing operations in the subscription economy. It addresses key changes needed in sales operations, including focusing on continuous revenue growth from the existing customer base, reducing costs of sales, and optimizing the sales team. Metrics like cost of sales operations per dollar of monthly recurring revenue are also covered. Billing operations such as invoicing, collections and churn prevention are discussed. The document emphasizes that sales and billing operations need to be integrated and automated to scale successfully in the subscription business model.