The Name property returns the name of the data field as it appears in the Object Data Manager docker.
Examples:
The following VBA example shows the list of all data fields defined for the active document along with their format strings.
Sub Test()
Dim s As String
Dim df As DataField
s = "Data Fields available:" & vbCr
For Each df In ActiveDocument.DataFields
s = s & vbCr & df.Name & " : " & df.Format
Next df
MsgBox s
End Sub