Hi jcousin,
Please allow me to explain the vendor notification procedure. If the customer places order for a product, the vendor will not receive any notification until the order has been marked as either processing or as complete.
The logic behind the flow is the admin will keep track of order placement and all the required processes happening before marking the order processing or completed. It will help to avoid any kind of confusion that may occur if all the mail notification goes to the vendor just after placing the order as the vendors don’t have the facility to check whether the payment has been received by the customer or not before delivering the product. Once the payment is received from the customer, the admin marks the order as processing or completed and a mail goes to the vendor for the fulfillment of the order.
Regards,
Akshaya Swaroop