Total of a repeat group on anaother repating group

[leogandra]

I have a repeate group with a series of information on the number of invoices, code of items sold and quantity of items sold.
I need to create another repeate group totaling each item by code and the quantity sold. I can filter for the quantity sold using unique elements but I can’t do it for the item codes. Can someone help me??

[leogandra]

the filter for sum quantities of sales works but i cant filter uniq product code on the second repeating group

[NoCodeDataArtisan]

Hey,
Have you tried using group by?