Actually, I thought THAT was what I showed you. Dissect this formula and that's what it does:
=SUMPRODUCT(--($A$2:$A$100=$G22),--($B$2:$B$100=YEAR(H$1)),--($C$2:$C$100=LEFT(H$1,3)),$D$2:$D$100)
That formula from cell H22 in the sample sheet, breaks down as:
=SUMPRODUCT(--(NameChosen),--(YearChosen),--(MonthChosen),Values)
So how does this not provide the syntax for what you've asked here? You can adjust the ranges to suit, use named ranges as in your question, and use whatever cells you've designed as your "filter", but it works the same way.
I apologize if I'm missing something obvious.
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