Sum values if another column is not blank

Hello,

I'm relatively new to dax and i'm trying something more complicated but i fail 😞

I have the following data:

What i would like to do is:

Check if there any value in column sold greater than zero.

If yes then sum all 'available' by product.

I tried the following

sumif = 
    var __table = 
        FILTER('data$',
        [Sold] <> 0
)
return
sumx(__table,[Available])

but i only get the sum of the rows that are non zero (rows: 1, 3, 6, 7 and 9)

What i'm missing?

Thank you!

Grigoris