Otherwise, the following macro will update all cross-references in a document, but may be overkill.
Code:
Sub UpdateAllRef()
' Update all Ref fields in a document, even if in headers/footers or textboxes
' https://gregmaxey.com/word_tip_pages/word_fields.html
' November 6, 2018 Charles Kenyon
Dim rngStory As Word.range
Dim lngValidate As Long ' do not know purpose of this - CK
Dim oShp As Shape
' Dim oTOC As TableOfContents, oToa As TableOfAuthorities, oTof As TableOfFigures
Dim oStory As range
Dim oField As Field
lngValidate = ActiveDocument.Sections(1).Headers(1).range.StoryType ' do not know purpose of this
For Each rngStory In ActiveDocument.StoryRanges
'Iterate through all linked stories
For Each oField In oStory.Fields
If oField.Type = wdFieldRef Then oField.Update
Next oField
Do
On Error Resume Next
For Each oField In rngStory.Fields
If oField.Type = wdFieldRef Then oField.Update
Next oField
' rngStory.Fields.Update
Select Case rngStory.StoryType
Case 6, 7, 8, 9, 10, 11
If rngStory.ShapeRange.Count > 0 Then
For Each oShp In rngStory.ShapeRange
If oShp.TextFrame.HasText Then
For Each oField In oShp.TextFrame.Fields
If oField.Type = wdFieldRef Then oField.Update
Next oField
' oShp.TextFrame.TextRange.Fields.Update
End If
Next
End If
Case Else
'Do Nothing
End Select
On Error GoTo 0
'Get next linked story (if any)
Set rngStory = rngStory.NextStoryRange
Loop Until rngStory Is Nothing
' 'Special Cases
' For Each oTOC In ActiveDocument.TablesOfContents
' oTOC.Update
' Next oTOC
' For Each oToa In ActiveDocument.TablesOfAuthorities
' oToa.Update
' Next
' For Each oTof In ActiveDocument.TablesOfFigures
' oTof.Update
' Next
Next
'
Set oStory = Nothing
Set oField = Nothing
Set rngStory = Nothing
Set oShp = Nothing
' Set oTOC = Nothing
' Set oToa = Nothing
' Set oTof = Nothing
End Sub