Further to a post yesterday looking at Countif3d, I am now trying to use a
similar UDF for SumProduct 3d, but I keep getting the #Value! I found the
macro on:
http://www.dailydoseofexcel.com/arch...ned-functions/
(it has been modified a bit from the website based on a suggestion from the
forum yesterday - which worked perfectly for countif3d)

What am I doing wrong? Thank you in advance

The formula I enter is:
=SumProduct3D2(("'Blank 1:Blank 2'!A9:A10"=A45)*("'Blank 1:Blank
2'!J9:J10"="x"))

The macro for the function is:

Function SumProduct3D2(sRng1 As String, sRng2 As String) _
As Variant

Dim vaRng1 As Variant, vaRng2 As Variant
Dim rTemp As Range
Dim i As Long
Dim Sum As Double
Dim rCell As Range

Application.Volatile

vaRng1 = Parse3DRange2(Application.Caller.Parent.Parent, sRng1)
vaRng2 = Parse3DRange2(Application.Caller.Parent.Parent, sRng2)

For i = LBound(vaRng1) To UBound(vaRng1)
Sum = Sum + (vaRng1(i).Value * vaRng2(i).Value)
Next i

SumProduct3D2 = Sum

End Function

Function Parse3DRange2(wb As Workbook, _
SheetsAndRange As String) As Variant

Dim sTemp As String
Dim i As Long, j As Long
Dim Sheet1 As String, Sheet2 As String
Dim aRange() As Range
Dim sRange As String
Dim lFirstSht As Long, lLastSht As Long
Dim rCell As Range
Dim rTemp As Range

On Error GoTo Parse3DRangeError

sTemp = SheetsAndRange

'if it's 3d, rtemp will be nothing
On Error Resume Next
Set rTemp = Range(sTemp)
On Error GoTo Parse3DRangeError

'if it's 3d, parse it
If rTemp Is Nothing Then
i = InStr(sTemp, "!")
If i = 0 Then Err.Raise 9999

'next line will generate an error if range is invalid
'if it's OK, it will be converted to absolute form
sRange = Range(Mid$(sTemp, i + 1)).Address

sTemp = Left$(sTemp, i - 1)
i = InStr(sTemp, ":")
Sheet2 = Replace(Trim(Mid$(sTemp, i + 1)), "'", "")
If i 0 Then
Sheet1 = Replace(Trim(Left$(sTemp, i - 1)), "'", "")
Else
Sheet1 = Sheet2
End If

'next lines will generate errors if sheet names are invalid
With wb
lFirstSht = .Worksheets(Sheet1).Index
lLastSht = .Worksheets(Sheet2).Index

'swap if out of order
If lFirstSht lLastSht Then
i = lFirstSht
lFirstSht = lLastSht
lLastSht = i
End If

'load each cell into an array
j = 0
For i = lFirstSht To lLastSht
For Each rCell In .Sheets(i).Range(sRange)
ReDim Preserve aRange(0 To j)
Set aRange(j) = rCell
j = j + 1
Next rCell
Next i
End With

Parse3DRange2 = aRange
Else
'range isn't 3d, so just load each cell into array
For Each rCell In rTemp.Cells
ReDim Preserve aRange(0 To j)
Set aRange(j) = rCell
j = j + 1
Next rCell

Parse3DRange2 = aRange
End If

Parse3DRangeError:
On Error GoTo 0
Exit Function

End Function 'Parse3DRange