I have never heard of something like this, and we're hiring people in Germany. Which leverage would a candidate have if you give him/her specific feedback regar

I have never heard of something like this, and we're hiring people in Germany. Which leverage would a candidate have if you give him/her specific feedback regarding lack of knowledge in required areas? Can you name one case where this actually happened? The only practical way someone could sue you is through "Allgemeines Gleichbehandlungsgesetz (AGG)" if they can prove that you discriminated them based on their age, gender or ethnicity.