The General Data Protection Regulation (GDPR) is a regulation on data protection and privacy in the European Union (EU) and the European Economic Area (EEA) It also addresses the transfer of personal data outside the EU and EEA areas. Data enrichment is defined as merging third-party data from an external authoritative source with an existing database of first-party customer data. It is usually the last step in constructing a dataset for a marketing campaign, but can be used for several other goals.”]
Source: https://blog.malwarebytes.com/explained/2020/01/explained-data-enrichment/