GroupLevel Property
Returns the placement of the specified field within a group of fields (if the field is a member of a grouped set of fields). Read-only.
Remarks
This property is not available for OLAP data sources.
The highest-level parent field (leftmost parent field) is level one, its child is level two, and so on.
Example
This example displays a message box if the field that contains the active cell is the highest-level parent field.
Worksheets("Sheet1").Activate
If ActiveCell.PivotField.GroupLevel = 1 Then
MsgBox "This is the highest-level parent field."
End If