Sage 300

When adding an item to a BOM using the web screens (Sage 300 2023.1) I get " Item number does not exist" error. Sometimes with the master item and always with the component item. I also notice that the UOM does not show in the UOM finder on the BOM either…

Is there a way to adjust a BOM during a transaction. My client has a BOM that can use substitute materials. We are creating versions of the BOM for normal customizations, like using 50% of one material and 50% of the other, but they can make many versions…