The Register of Processing Activities (RPA), as defined by the GDPR, is an essential document for any organization. It lists in detail the various personal data processing operations carried out by the organization or its partners. In addition to information about the data controller and, where applicable, the Data Protection Officer (DPO), the RPA must include key elements such as the purposes of the processing, the types of data subjects and data collected, the recipients of the data, any transfers to third countries or international organizations, the data erasure periods, and an overview of the security measures implemented, from both a technical and organizational perspective.