Revenue Growth and Revenue Control go hand-in hand. In organizations with many customers, products, price points, discount types or rebates, it is key to keep the net revenue under control. Net revenue being defined as Quantity * (Gross Price minus all discounts minus all off-invoice rebates minus all other monies flowing to the customer). If the company manages gross prices / list prices, but let's sales teams discount arbitrarily, then net revenue tends to tumble as discounts grow.
Controlling revenue in B2B, as well as B2C, means being on top of what prices and discounts are offered to each customer.
In business relations it is very much the norm that a variety of discounts or rebates are given to customers, which leads to that many customers have different pocket prices, or net net prices, after all those discounts. This is in itself a good thing, as it means that suppliers can differentiate discounting and final price paid, based on customer value and performance.