I received this information from my friends boyfriends mother so please feel free to chime in if any of this information is incorrect/lost in translation
The Paris sale is from June 25th 28th from 10am 7pm at the Palais des Congrès porte Maillot. Apparently, lots of people attend this sale so its best to arrive a few hours before as my friends boyfriends mother queued for 2 hours last year!