Hi Alessio,
for youth champion you need 3 qualifications from 2 different judges. It is a different Qualification only for youth championtitle. They are not counting for the normal german championtitle... so you have to get the qualifications until the dog is 18 month old, if you have not finished it then, you will never get youth champion title.
For normal german national Champion title you need 5 qualifications from 3 different judges. The qualification in Dortmund counts twice, and if you get there the reserve qualification, it counts like a normal qualification.
In germany there is no club responsible for wolfdogs below the VDH, so you can´t get a club championship for wolfddogs in germany.
For Terrier no problem, there can you get club-Championship and normal championtitle.
I hope, I could solve your problems
Tanja