The name of a PivotTable field defaults to the name of the SourceField source field unless the field is a DataFielddata field, or a field with that name already exists in the table. All DataFields data field names will have a unique number appended to the end. If a DataField data field name was changed later to be the name of the SourceField, a RowLabel, ColumnLabel, or PageField source field, the name of any row label, column label, or page field created from the same SourceField source field will have a unique number appended to the end. | 