Conflicting DATA - Duplicated values - vba

Question

I created a macro that fills the missing Data with specific Data from another sheet , the codes works perfectly in copying pasting data from excel of the client and prepare the data needed to start the work but the only problem here below
Code:
With Worksheets("Feuil2")
' reference "target" sheet (change "Target" to our actual target sheet name)
With .Range("B1:B" & .Cells(.Rows.Count, 1).End(xlUp).Row) 'reference
its column B range from row 1 down to last not empty one
If WorksheetFunction.CountBlank(.Cells) > 0 Then
' if any blank cell in referenced range. this check to avoid error thrown by subsequent
statament
.SpecialCells(xlCellTypeBlanks).FormulaR1C1 = "=index(GDC!" & rng.Offset(, 1).Address(, , xlR1C1) & ",match(RC[-1],GDC!" & rng.Address(, , xlR1C1) & ",0))" 'fill blank cells with a lookup (well, sort of) formula
.Value = .Value 'get rid of formulas and leave values only
Cells.Select
End If
End With
End With
This code works perfectly in matching and filling data but when for e.g find a duplicated value it copy only the first value not the second one
See the image below to better understand the main problem :
As you can see in the image The problem that in column A i may have data repeated twice like this value P20845 which in column F it is repeated one with the name of Ghaith and the other with the name of sirine but as you can see in the column A it is just with the name also of Ghaith and there is no name of sirine
Anyidea or better solution in solving this and getting all the needed DATA? .
Best Regards
POLOS

Answer 1

Or use a dictionary
Option Explicit
Public Sub AddValues()
Application.ScreenUpdating = False
Dim wb As Workbook, wsSource As Worksheet, wsTarget As Worksheet, masterDict As Object, arr() As Variant, i As Long, rng As Range
Set wb = ThisWorkbook
Set wsSource = wb.Worksheets("Feuil1")
Set wsTarget = wb.Worksheets("Feuil2")
Set masterDict = CreateObject("Scripting.Dictionary")
With wsSource
arr = Intersect(.Columns("A:B"), .UsedRange)
For i = 1 To UBound(arr, 1)
If Not masterDict.exists(arr(i, 1)) Then masterDict.Add arr(i, 1), GetAllMatches(arr(i, 1), arr(i, 2), wsSource)
Next i
End With
With wsTarget
For Each rng In Intersect(.Columns("A"), .UsedRange)
On Error Resume Next
rng.Offset(, 1) = masterDict(rng.Value)
On Error GoTo 0
Next rng
End With
Application.ScreenUpdating = True
End Sub
Public Function GetAllMatches(ByVal findString As String, ByVal dupString As String, ByVal searchRng As Worksheet) As String
Dim foundCell As Range
Dim concatenatedString As String
concatenatedString = vbNullString
With Intersect(searchRng.Columns(1), searchRng.UsedRange)
Set foundCell = .Find(findString)
If foundCell Is Nothing Then Exit Function
If Not foundCell Is Nothing Then concatenatedString = foundCell.Offset(, 1)
Dim currMatch As Long
currMatch = 0
For currMatch = 1 To WorksheetFunction.CountIf(.Cells, findString)
Set foundCell = .Find(What:=findString, After:=foundCell, _
LookIn:=xlValues, LookAt:=xlWhole, SearchOrder:=xlByRows, _
SearchDirection:=xlNext, MatchCase:=False)
If Not foundCell Is Nothing And InStr(1, dupString, concatenatedString) = 0 Then
concatenatedString = concatenatedString & "/" & foundCell.Offset(, 1)
Else
concatenatedString = foundCell.Offset(, 1)
End If
Next currMatch
End With
GetAllMatches = concatenatedString
End Function
Output in Feuil2

Answer 2

Maybe something like this instead?
Sub Test()
Dim i As Long, myrow As Long, lastrow As Long
Dim sht1 As Worksheet, sht2 As Worksheet
Set sht1 = ThisWorkbook.Worksheets("Sheet1")
Set sht2 = ThisWorkbook.Worksheets("Sheet2")
lastrow = 1
For i = 1 To 7
If Application.WorksheetFunction.CountIf(sht1.Range("A:A"), sht2.Range("F" & i).Value) = 0 Then
If i = 1 Then
lastrow = 1
Else
lastrow = sht1.Cells(sht1.Rows.Count, "A").End(xlUp).Row + 1
End If
sht1.Range("A" & lastrow).Value = sht2.Range("F" & i).Value
sht1.Range("B" & lastrow).Value = sht2.Range("G" & i).Value
Else
sht1.Range("B" & sht1.Columns("A:A").Find(What:=sht2.Range("F" & i).Value).Row).Value = sht1.Range("B" & sht1.Columns("A:A").Find(What:=sht2.Range("F" & i).Value).Row).Value & "/" & sht2.Range("G" & i).Value
End If
Next i
End Sub