Settings: Order Approval Settings: Invoicing Policy Make RFQ Confirm Purchase Order PO Settings: Drop shipping Settings: Purchase Agreement Making Automated Purchase based on inventory Qty. Settings: Unit of Measures. How to trigger the purchase of products based on sales? Analyze the performance of my vendors. How to trigger a warning when purchasing at a specific vendor? Inventory Receive products Receive part of purchasesBack Order Accounting Making vendor bill Tracking invoicing policy per product Register payment or part of payment