Click above to get retro games delivered to your door ever month!

   3411   Unknown identifier found in AX_ExprValid() expression

   Problem:   Error occurred in the Advantage Expression Engine parser.
   An identifier within the AX_ExprValid() expression is unknown to the
   parser.

   Solution:  This error is usually caused by the use of memory
   variables within the AX_ExprValid() expression.  Memory variables
   are not supported by the Advantage Expression Engine as the variables
   are visible only to the client.  This error may also result from a
   misspelled field name or from a field name that does not exist in
   the current work area.