Syncing Purchase orders with Quickbooks Desktop

We are a single location store. I am using Shopify admin to create and receive Purchase Orders. When I receive an order inventory is updated correctly. When I sync with Quickbooks desktop I get the days sales orders to sync correctly, so the connection is working. However, no purchase orders are being synced. I found the Shopify Admin ordering and receiving is working as desired. Do I have to use Stocky to receive orders so that Quickbooks sync will work?