Method for processing sheet products

A method is for processing sheet material, in particular value papers, such as banknotes, checks, etc., in which different groups of sheet material are processed one after the other. The different groups of sheet material are separated for processing. In the processing of different groups of sheets materials, which are separated from one another by separation cards arranged respectively at the beginning of the different groups of sheet material, a first processing, in which separation cards and unrecognized sheet material are sorted out, should be followed by a second processing of the sorted-out separation cards and of the unrecognized sheet material, in which separation cards to which no unrecognized sheet material is assigned are sorted out.