Private Sub Workbook_SheetChange(ByVal Sh As Object, ByVal Target As Range)
    'This line stops the worksheet updating on every change, it only updates when cell
    'A1 to A9 is touched
    If Intersect(Target, Worksheets(1).Range("A1:A9")) Is Nothing Then Exit Sub

'Set the Variables to be used
Dim pt As PivotTable
Dim Field As PivotField
Dim NewCat As String

'Here you amend to suit your data
Set pt = Worksheets(1).PivotTables("PivotTable1")
Set Field = pt.PivotFields("Sales Region")
NewCat = Worksheets(1).Range("A1:A9").Value

'This updates and refreshes the PIVOT table
With pt
Field.ClearAllFilters
Field.CurrentPage = NewCat
pt.RefreshTable
End With


End Sub