Autocreate UOM Conversions for item with Dual UOM Conversion from different class

Summary:

We wanted to test the following features as it is a requirement for our customer to be able to order some item by Pallet instead of Each, however we encountered the following error : "You must use a packaging string and a dual unit of measure from the same class andin the string on item ****"

Content (please ensure you mask any confidential information):

Our customer sales chemical product that are stored and transact mostly in Jerrican, but are priced in Kilogram. Therefore our item are managed in Primary UOM = Each, and secondary = Kg.

Some Sales Order need to be recorded in Pallet, therefore we have define a new Pal UOM, in the same class as the primary UOM Ea.