Mass Update on a Sales order with main line set false produces no result. I thought this worked in the past, as a search currently still works. Anyone have any thoughts on this ands where I am obviously off track?

mass update is for fields that support inline edits

Yea, must be a senior moment but I would have sworn I have updated line items on the sales order in the past through mass update. Had to use an import to do the update this time. Well, whatever. Thanks.