excel - Concatenate cell data into another data if values matches

Question

I have two columns A and B in same excel sheet. I am trying that if in Column B two values matches then it should copy related value A in same row.

For e.g

Table

Column A      Column B
xyz              1
abc              1
pqr              1  
eee              2
qqq              3
www              4
oop              5

Desierd Output

column A         Column B
xyz,abc,pqr         1
eee                 2
qqq                 3
www                 4
oop                 5 

Answer 1

You could probably use a User Defined Function (aka UDF) for this. Put this into a module sheet.

Public Function conditional_concat_strs(rSTRs As Range, rCRITs As Range, rCRIT As Range, Optional sDELIM As String = ", ")
    Dim c As Long, sTMP As String

    Set rSTRs = rSTRs.Cells(1, 1).Resize(rCRITs.Rows.Count, rCRITs.Columns.Count)
    For c = 1 To rCRITs.Cells.Count
        If rCRITs(c).Value2 = rCRIT Then _
            sTMP = sTMP & rSTRs(c).Value & sDELIM
    Next c
    conditional_concat_strs = Left(sTMP, Application.Max(Len(sTMP) - Len(sDELIM), 0))
End Function

Use like any native worksheet function.

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