How to specify default product in product display?
My issue is that I have created all my products in Commerce and created a product display, all the different options for the product are given through a couple of drop down select lists.
I want the default to be the lowest price and I have achieved this in part by using the method of creating a module which uses hook form alter and changes the default value for each select list, however the price doesn't update. It still shows the original price until a new selection is made in one of the select lists.
I read elsewhere that the SKU defines the default product in the display yet I have tried to manipulate this by changing the SKU and nothing changes.
Someone else must be having this issue somewhere, can we figure something out... Thanks