My config: OPC 2.0.286.664.210515, Joomla 3.4.3, VM 3.0.9
Hi Stan, I have started using the Istraxx Quantity Plugin to provide quantity-based discounts (e.g. 1 shirt for €22.50, 2 shirts for €39). This means a €3 discount per product is given when the quantity is 2 or more.
The plugin gives the right output on the product details page, the amount is also correct in the shoppingcart module whenever the quantity is changed.
But ... on the OPC checkout page, the addition is wrong. When only 1 product is in the cart, the item price is displayed correctly but the discount is also applied, resulting in a wrong subtotal (see screen1.jpg).
When the quantity is raised to 2, then all the numbers are correct (screen2.jpg).
Can you help out in getting the right numbers based on the minimum quantity in the Istraxx plugin? Thanks!