Despite intensive investigations, the phenomenon of hydrogen embrittlement has been a significant technological problem for more than a hundred years, which is discussed scientifically controversially and is considered unresolved. It is commonly assumed that different effects are combined in a complex manner, which makes the understanding and thus the further development of hydrogen-resistant high-strength steels more difficult. In the present work, a multi-scale modelling and characterization approach was applied. The crack formation was observed in a locally resolved manner. The requirements for hydrogen embrittlement resistance on the basis of various applications of sheet metal forming was derived. The investigations are accompanied by a simulation at various levels for the quantification of the boundary conditions of hydrogen loading and -diffusion, of the deformation and the damage and crack formation. The principle of hydrogen embrittlement of high-Mn steels is discussed.