No, your customers do not need to purchase separate licenses from us. You pay us one fee per user per month and you can provide your customers with backup, recovery and backup storage services for their Microsoft 365/Office 365 mailboxes, Teams, OneDrive and SharePoint – what you charge them is up to you. Windows workstations and laptops backups are included in the price but backups storage is not; you must provide this: Save endpoint backups to your own MS Azure account and bill each customer for storage used, adding another revenue stream over and above the backup service itself.