Legal norms: Section 48 of the German Social Code, Book X (SGB X) in conjunction with Section 330 Paragraph 3 Sentence 1 of the German Social Code, Book III (SGB III), Section 138 Paragraph 5 Number 2 of the German Social Code, Book III (SGB III) – Keywords: Late notification of postal address, accessibility via app and email, modern means of communication, mail forwarding order, Federal Employment Agency, Hanover Employment Agency, Hildesheim Social Court
