Unique Value Symbology

Discussion created by rosscurry on Oct 27, 2011
Latest reply on Nov 8, 2011 by cfox-esristaff
I am working on an automated mapping task that is going to require over 800 maps being produced.  From reading the enhancements with 10.1 I thought that I could use unique value symbology that is created in a saved layer, then bring in that symbology to a layer in my mxd and apply the symbology to a new field - thus making it possible to create maps for the 800+ outcomes without creating 800+ seperate layers.  Have I misunderstood this functionality?  I have written code to do this and though it links to the saved layer (through UpdateLayer), once I change the "valueField" it turns all of my unique value symbols into pale pinks, blues, yellows etc. 

Is there a way to do this with the enhancements in 10.1 and Python or am I still going to have to create those 800+ seperate layers if I want to control the colors of my maps?