When you create a subscription, you have the option to book the invoice and let it be sent automatically to the client.
Yet, in order to be able to choose for this option, you need to go to Settings > Invoices > Automatic reminders and add a new line by clicking on the plus sign. You then need to specify how it should be sent and which template should be used.
Once this is set, you can put the slider “Autosend invoice” on “Yes”.
Customer support service by UserEcho