But, if there is more than one chargenmorphcfg.xml file in your Dragon Age override folder, the game won't know which one is the right one to be used and the character creator won't work properly.
Most cosmetic mods add their own chargenmorphcfg.xml file that contains the vanilla respurces plus the ones added by the mod. The character creator will show you only the resources that are listed in that xml file. This tutorial will explain how to install more than one cosmetic mod for Dragon Age making all of them compatible so you can access the resources they add from the character creator.
This means that, if you install more than one cosmetic mod at the same time, you won't see the resources added by all of them in the Dragon Age character creator unless you make them compatible first.