Updating Fields

Updates all the fields in the collection

objFields.Update 

If a field is locked it can no longer be updated.

This example updates any fields in the active document that aren't updated automatically.

Dim objField As Field 
For Each objField In ActiveDocument.Fields 
    If objField.LinkFormat.AutoUpdate = False Then 
        objField.LinkFormat.Update 
    End If 
Next afield 

In Header and Footer

Dim objHeader As HeaderFooter 
Dim objField As Field 

   Set objHeader = Application.ActiveDocument.Sections(1).Headers(wdHeaderFooterIndex.wdHeaderFooterFirstPage) 
   
   For Each objField In objHeader.Range.Fields 
      objField.Update 
   Next objField 

Inside Text Boxes

   'ActiveDocument.Shapes(1).Name = "TB_HeaderLinking_DocReportTitle"
   ActiveDocument.Shapes.Item("TB_HeaderLinking_DocReportTitle").TextFrame.TextRange.Fields.Update