I have a table where my headers are dynamically generated from another source and can show up with any header values, in any order.
In the example below I've got the header values:
AA - BB - CC - ABBA - KK - VV
but it could just have well been:
CC - AA - QQ - YY
I don't know in advance which headers I will get, or how many.
My issue is that I want to sum all product values, using an array formula, where the column headers include for instance "BB".
=arrayformula(sumifs(C4:H1000,$C$3:$H$3,"*BB*")), if that had been a thing.
My closest guess is that I need to use a VLOOKUP of some sort, but since the index of the columns to get the data from isn't static I can't quite figure out how to solve it.
Desperate for help.