I am trying to add some values to an Orderline field in the same AJAX call with adding the Product to cart.
Asuming The system name of the Orderlinefield is Mileage, what should be the name of the Parameter used for Post?
I tried so far "Mileage" and "OrderLineFieldValue_Mileage" but it does not seem to work.
Also, the orderline fields are attached to the Shop and they are displayed on the Group details as being inherited from the Shop.
I am using 9.4.6.