TL;DR
Yes they are placed automatically
Explanation
When a customer purchases a subscription product, they accept this term on the Shopify checkout:
Subify will then get access to automatically renew the order on the interval of that product. It means that at every interval, Subify creates a billing attempt for that subscription and sends it to Shopify to process the payment. After the billing attempt is processed by Shopify. If the billing attempt is successful, then an order is created with the payment status of "paid" in your Shopify admin panel.
On the Subscriptions tab of your Subify panel, you can see all your subscriptions. If you click on one of them, you'll see more details about recurring orders of that subscription.
The history of recurring orders is visible under "Order History".
By clicking on each Order ID, you will be redirected to the order page on your Shopify admin panel.
