Configuring and managing product with Usages
For some products (e.g.: Backup) we are using the "pay as you go plan" but we resell those at fix price or don't charge for extra (e.g.: 10$ for 100 GB). We would like to have a way to customize the value and receive some notification when our customers are about to reach their maximum usage so we could take the necessary action with them (e.g.: upgrading, analyzing the situation).