Q:  I am using AutoCAD LT 2005 and am trying to use Fields as much as they are capable.  Can I use Fields in conjunction with the Sheet Set Manager?

A:  Unfortunately, Fields aren’t supported in your situation. A list of Field-supported features in AutoCAD 2005 are as follows:

-Use field to count AutoCAD blocks.
-Use field to calculate the area of multiple AutoCAD objects.
-Use field to calculate the length of multiple AutoCAD objects.
-Create the AutoCAD field based on the specific cell of AutoCAD native table.
-Import the specific cell of the Excel worksheet as the AutoCAD field.
-Import the text format text as the AutoCAD field.

So in all actuality, AutoCAD Fields couldn’t be used in conjunction with the Sheet Set Manager in the 2005 release at all. That functionality wasn’t released until AutoCAD 2006.  To give a more complete answer to the post above, Fields and the Sheet Set Manager aren’t fully compatible in AutoCAD LT 2009 either. So even if you updated to a newer version of LT, it wouldn’t fix the issue you’re having.  Also if you have AutoCAD LT 2006 or later, you can build objects with Fields in them from a “full” version of AutoCAD that will then work when used in LT 2006 or later.