The EDPB Binding Decision 5/2022 relates to a complaint-based inquiry on the lawfulness and fairness of the processing for service improvement, and addresses several questions including, in particular, whether the processing of personal data for the performance of a contract is a suitable legal basis for such processing operation.  

Please find the decision of the IE SA in the EDPB Register for Decisions taken by supervisory authorities and courts on issues handled in the consistency mechanism or directly here