Specify alert threshold.

For example, set the value to "5" if you want an alert to be sent when the number of available licenses becomes less than five licenses. Or you can set the value to "3%" if you want to send an alert when less then 3% of quota remains.

Select All licenses with quota limit if you want to track the quota limit for all the licenses that you have in your tenant. 

Select Licenses specified below if you want to track the quota limit only for some specified licenses.

If you select License quota notification contacts, a copy of the report would be sent to each recipient, specified in the License Quota Notification Contact setting on each Administrative Unit. Each recipient will get a copy of report containing only the Administrative Units for which they are designated as the recipient.

If you select Contacts specified in the To field, the report about all Administrative Units will be sent to the users or groups specified in the To field.

• Select None, if you select License quota notification contacts in the Send report to field.

• Specify email addresses of users or groups to send the report about all Administrative Units.

• Select Default Notify & Alert Email Address - usually, this is administrator's email address.

Address to send a copy of the email.

Users can receive emails from default SMTP address or a Default Notify & Alert Email Address.

Email subject.

TIP: It is possible to customize email subjects by using different tokens, see Customizing an automation rule or web action output email.