I have data in col a and col b
I want concatenate all data in col a by criteria in col b, criteria in col b = "union"
Example b2,b5,b10 = union
Then result in d3 = (a2,b5,b10).value
I have formula array vba
D3 = application. Transpose(join([b:b="union",a:a,""],",")
How i cant do use formula array like it use join
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