Purchase order troubleshooting If you have problems with purchase orders, use this troubleshooting information. ezyVet shows a Purchase Order Expense: error message when you save a purchase order recordezyVet shows an Open Purchase Orders error message when you try to deactivate a product recordezyVet shows a you tried to add lines with a different supplier error message when you save a product supplier invoiceParent topic: Purchase ordersRelated conceptsPurchase order statusesRelated tasksMake a purchase orderSet the number of line items for new purchase ordersRelated informationPurchase order configuration