Mass Update from Generic Inquiry : Why are my availalble fields so limited?

Greetings all,

I’m trying to mass update the value of a Business Account attribute, ideally through a Generic Inquiry. I’ve got the inquiry written, and it joins multiple tables including Contact (the ‘parent’ table) and Business Account. (I want to update the Business Account attribute values based on values at the Contact level.)

But when I search the ‘Mas Update’ field list, I’m only seeing fields from the Contact table.

Must I write a new inquiry with Business Account as the ‘parent’ table in order to see Business Account attribute fields show up in the ‘mass update’ area?

I’m confused, because since my Inquiry returns Business Account attributes I assumed I’d be able to update them.

Props to Sergey Marenich for writing this article https://asiablog.acumatica.com/2016/09/mass-processing-using-gi.html