Decision of the Court of Appeals in Warsaw 1st Civil Division of 4th October 2018
I ACz 861/18

1. To implement the group proceedings, it is sufficient that the set of basic circumstances constituting the factual basis of the demand is the same in relation to a sufficient number of persons. It is not, however, strictly necessary for convergence to occur in respect to all the circumstances forming the factual basis of the claims of individual group members.
2. Members of a group may raise claims of a different nature, and this is acceptable if such claims are made by all members of the group. Therefore, it is not the case that more than one claim can be made in a class action.