On transaction forms, department, class, and location columns in the items sublist are mandatory. Where is the setting to make them not mandatory?

You can use this article to set these fields automatically: https://technologyblog.rsmus.com/technologies/netsuite/using-workflows-to-set-item-sublist-fields/

It turned out to be in the company settings not the form level. 😆

nice, if you need them set still that article can help

Thanks!

Fun fact. Hiding the column fields on a form will push the body field values to the lines. If the fields are present, they remain empty on the lines.