I am new to using QB Enterprise.  My question is:  we receive an order from a customer, I create a sales order, then I create the purchase order with a vendor from the sales order, once the items ship from the vendor, I receive the items on the purchase order by Receiving Items and Enter A Bill.  I then create an invoice from the sales order.  However the problem is the items don't come out of inventory.  Can someone PLEASE help with that problem?  We have hundreds of items and I really need this very important process to work correctly.