In which scenario does data replication occur in MDG?

Data replication in SAP Master Data Governance (MDG) occurs when approved master data is synchronized with downstream systems. This process ensures that once the data has been created, validated, and approved in the MDG hub, it is consistently updated across all relevant systems that rely on that master data. The replication ensures data integrity and maintains one authoritative source for master data, allowing various systems to have the most current and reliable information.

In contrast, when data is deleted from the MDG hub, there is typically no replication action because the focus is on maintaining synchronized data rather than removing it across systems. Similarly, if master data is created manually in downstream systems without going through the MDG process, it may lead to discrepancies and issues since it hasn't been validated or approved by the MDG workflow. Lastly, archiving data in the MDG hub pertains to data handling rather than replication, as the focus here is on storage management rather than ensuring data consistency in operational systems.