As a new, small e-commerce business who purchases inventory from a variety of suppliers, the purchase order features seemed to be the right fit since we integrate our inventory management through the 6 e-commerce marketplaces we sell on. I learned that shipstation requires you to purchase the package that is almost 3 times the price than the plan we are currently on ($150 per month to $400 per month). Was wondering if anyone on the forum currently uses the purchase order premium feature with their high volume subscription?