No you need to be at the dusknoir chapter then marill will tell you to go to amp plains
Ww@947q9#6#&pwyxk
I used the Wondermail Generator online to obtain it.
You first get a secret slab/mystery part (type wondermail genrator in google) and then go to Amp Plains (Make sure that the secret slab/mystery part is in your tresure bag)
To get that wondermail go to google,type in the box wondermail generator,and then click wondermail generator 2 and put in the thing you want then type the code into your game.
here is the wondermail code === #&S6 NY2& YJN= 1P57 FOMN MH7Y
Im sorry my Friend. Pokesav is only available for Pokemon Diamond/Pearl. You need a Wondermail generator for Pokemon Mystery Dungeons. And for the time being, the developers are currently indergoing processes to make a Wondermail generator for Pokemon Mystery Dugeon Explorers of Sky!
You go to it in the course of the story
recruit it in amp plains
you need to go via wi-fi and get them via wondermail or you can go to serebii.net then go to pokémon mystery dungeon explorers of darkness\time then look at event pokémon and you can see the passwords but you always need to have finished crecive cave and i forget to mention you get them via missions
amp plains
Recruitment wonder mail is only in explorers of time, darkness, and sky.
the code is 115=x 98#QF5X 4X'#-% WNR01 NOWN6S# W2SCJ WORK'S REAPEAT WORK'S