two independent drop down list on one sheet, with various macro's attached

have two independent drop down list on one sheet with various macro attached to each drop down- the when pick from the second drop down list is does not work it intercepts zero- have tried to nest but does not work -is it possible to two independent dropdowns with different macro;s on one sheets
any help would be appreciated
thanks

Private Sub Worksheet_Change(ByVal Target As Range) 'Major customer and Internal Revenue
  
If Not Intersect(Target, Range("K1")) Is Nothing Then

    Select Case Range("K1")

        Case "Costco": Costco
        Case "Overstock": Overstock
        Case "Wayfair": Wayfair
        Case "InternationalRev": InternationalRev
        Case "Blank":
    End Select

End If
 
End Sub

Private Sub Worksheet2_Change(ByVal Target As Range) 'All Internal and External Monthly Incentive

If Not Intersect(Target, Range("G1")) Is Nothing Then

    Select Case Range("G1")

        Case "InternalMoIncentive": InternalMoIncentive
        Case "OutsideRepAdam": OutsideRepAdam
        Case "MinorrepsP": MinorrepsP
        Case ",OutsideRepSS_S": OutsideRepSS_S
        Case "Blank":
    End Select

End If

End Sub

Private Sub Worksheet_Change(ByVal Target As Range) 'Major customer and Internal Revenue

If Not Intersect(Target, Range("K1")) Is Nothing Then

Select Case Range("K1")

Case "Costco": Costco
Case "Overstock": Overstock
Case "Wayfair": Wayfair
Case "InternationalRev": InternationalRev
Case "Blank":
End Select

Elseif Not Intersect(Target, Range("G1")) Is Nothing Then

Select Case Range("G1")

Case "InternalMoIncentive": InternalMoIncentive
Case "OutsideRepAdam": OutsideRepAdam
Case "MinorrepsP": MinorrepsP
Case ",OutsideRepSS_S": OutsideRepSS_S
Case "Blank":
End Select

End If

End Sub

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I have added them for you - this time