Hi Roger,

I think there's a bit of confusion here, caused by multiple meanings for the
word "variable".

In VBA, you can have variables that are just memory locations defined within
the macro. Each one should be declared in a Dim statement and given a
specific data type, for example

  Dim CaseNumber As String

The expression ActiveDocument.Variables("CaseNumber") refers to something
else, a "document variable" that is stored in the document file. I don't
think that belongs in this macro at all.

Finally, you need to fill the variable CaseNumber by retreiving the contents
of the bookmark by that name. I think this is what you want (the
space-and-underscore is a continuation marker, meaning "this line and the
next one are part of the same statement"):

  Dim CaseNumber As String
  CaseNumber = _
     ActiveDocument.Bookmarks("CaseNumber").Range.Text
  Options.DefaultFilePath(wdDocumentPath) = _
     "\\lv-abc\defaultpath\CaseDocs\" & CaseNumber

An alternative to this method is shown at
http://word.mvps.org/FAQs/MacrosVBA/ChangeSaveAsPath.htm.