As an MSP with access to the Partner Portal you can generate and export a report with detailed usage for all your customers under MSP subscription by following the below steps:

1. Once logged in, click on [Usage Report]
   
   
   
   
   
2. Next, simply select the [Month] and the [Year]
   
   
3. Click [Search]
   
   
4. Finally, [Export to CSV]:
   
   
   
   
   You will get a report similar to the one below, in .csv format with customer name and their full usage details: