DocumentUniqueID

Since my tracking number agent will not run on the web, i figured that I would use the unique document ID as a tracking number over the web instead, however it seems as if that isnt working either.

I made a computed field with @DocumentUniqueID as the value, and on the web, its blank. Can someone help me please!

Subject: DocumentUniqueID

From Notes Help:To display the UNID, you must convert the result of this function to text, that is, you must specify @Text(@DocumentUniqueID).