I am trying to include named dimensions in a design table. Each time attempt to update the design table, I get this message:

"Column heading "dimensionname@sketchname" contains an invalid dimension name "dimensionname".

Exiting design table without completing model update"

I have tried several iterations of both the dimension name and the sketch name. examples: "length@VDCpos", "VDCposlength@Sketch21", "VDC+LENGTH@Sketch21"; all of these returned the same error.

Is there a syntax error here? or maybe max character length? I don't see any information on this in the help files.