You can view subscription usage for databases in the Azure Active Directory Report.
From the navigation pane, click Usage Summary.
The Usage Summary page appears, showing a summary of service subscriptions and their usage.
Click Azure Active Directory.
The Azure Active Directory usage report appears.
To view information for a specific time frame, click Time frame, and then select one of the time options.
Data Usage Per Month
The Data Usage Per Month chart displays total unique users protected. This chart updates when you select a time frame from the Time frame filter.
The Monthly Usage table displays monthly usage information for each user. This table updates when you click a month bar in the Data Usage Per Month chart.
Note: Subscription usage is free as long as you have at least one paid subscription.
Optional: Configure any of the following options to filter or export the Monthly Usage data:
To hide columns, click the Column button , un-select the columns that you want to hide, and then click Save.
To export data, click the Export button , select the export file format, and then save the file to your local computer.