The UPC code did not show up in the QuickBooks product file even though they are all in AdvancePro.

The QuickBooks SDK does not allow for a UPC to be exported. These are the Product fields exported: Name (SKU from AdvancePro), Active FullName (Name inAdvancePro) ,SalesTaxCodeRef ,SalesDesc (Description in AdvancePro), SalesPrice, IncomeAccountRef, PurchaseCost (Cost Price in AdvancePro), COGSAccountRef, PrefVendorRef, AssetAccountRef, ReorderPoint QuantityOnHand.