Hello Devs ! I built a component to handle unique generation of document names. The documents must be instantiations of a specified class and the generation is done taking into consideration the currently existing documents and all the values used before. It retrieves the maximum value currently used, increments It is configurable in xwiki.properties. More info cand be found here http://code.xwiki.org/xwiki/bin/view/Plugins/UniqueIdentificationNumberPlugi... . Thanks, Stefan Abageru !