Hosted by the IDSA (International Data Spaces Association), the workshop will delve into the intricate relationship between data spaces and DPPs. The aim is to uncover synergies, opportunities, and challenges among various projects dedicated to this vital subject. The participating projects are: CIRPASS (presented by Marcello and Moni), DaCapo, Circular TwAIn, and RE4DY. The projects will be presented before the workshop.