Laravel Spark
Per Team User Subscription inIf you want the ability to charge a team owner based on how many members their team has, like $10/user/month, then you utilize the Laravel Cashier functionality of incrementing the quantity.
You listen for when a new team member is added and you increase the quantity of the subscription by the amount of users and also listen for when a team member is removed to downsize charges. - Not Braintree Compatible
Within EventServiceProvider.php
'Laravel\Spark\Events\Teams\TeamMemberAdded' => [