This post will guide you how to concatenate text values based on unique values in another column in Excel. How do I concatenate cells based on specific criteria in Excel.
Concatenate Text Based on unique Values in Another Column
Assuming that you have a list of data in range A1:B6, in which contain product IDs and product Names. And you want to concatenate product names based on unique ID values (There are duplicated ID values in Column A), How to do it. You need to extract unique product IDs in another range, and then concatenating text values based on newly created range with a User Defined Function. Here are the steps:
Type this formula into cell C2, and press Ctrl + Shift + Enter keys on your keyboard to change it as array formula. And then drag the AutoFill Handle down to other cells until getting blank cells.
Note: the range A2:A6 is a range which you want to extract unique values from it. And the Cell C1 is the first cell of the column that you want to place the unique product ID values.
#2 open your excel workbook and then click on “Visual Basic” command under DEVELOPER Tab, or just press “ALT+F11” shortcut.
#3 then the “Visual Basic Editor” window will appear.
#4 click “Insert” ->”Module” to create a new module.
#5 paste the below VBA code (code from here) into the code window. Then clicking “Save” button.
Function Combinerows(CriteriaRng As Range, Criteria As Variant, _ ConcatenateRng As Range, Optional Delimeter As String = " , ") As Variant Dim i As Long Dim strResult As String On Error GoTo ErrHandler If CriteriaRng.Count <> ConcatenateRng.Count Then Combinerows = CVErr(xlErrRef) Exit Function End If For i = 1 To CriteriaRng.Count If CriteriaRng.Cells(i).Value = Criteria Then strResult = strResult & Delimeter & ConcatenateRng.Cells(i).Value End If Next i If strResult <> "" Then strResult = Mid(strResult, Len(Delimeter) + 1) End If Combinerows = strResult Exit Function ErrHandler: Combinerows = CVErr(xlErrValue) End Function
#5 back to the current worksheet, then type the following formula in a blank cell, and then press Enter key.
#6 drag the AutoFill handle over other cells to concatenate text based on unique product ID values.
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