Hi, I need to identify list members using a boolean. (What I tried is at the bottom)
In a system module SYS06, I have a line item "P2 Product Brand" that is populated using a list (shown in photo 1), it is list formatted.
Photo 1

then, I created a boolean line item that is intended to check in another module SYS03 (Photo 2), in the line item "Representative Item" if it is present, It is list formatted as well. (i.e If product 8 is present in SYS03, then it should evaluate my boolean as true).
(Photo 2)

I've tried using FINDITEM function but it requires a list as the first arg I have a line item, not a list so is not working, (for the second arg I used Name (P2 Product Brand) to have it formatted as text as required for FINDITEM function)
ISNOTBLANK(FINDITEM('SYS03 P1 Product Brand Family Details'.Representative Item, P2 Product Brand Text)
I've also tried using the lookup function but they don't have common dimensions, even though SYS03 was built using Level 1 of a product hierarchy and SYS06 was built using level 4 of the same product hierarchy.
Now I'm thinking in circles, any ideas on how to achieve it?