Described herein are means for implementing cross cloud engagement activity visualization without requiring database merge or data replication. For instance, an exemplary system includes: means for operating a database system communicably interfaced with the system of the host organization; means for operating a virtual entity bridge communicably interfacing the system with a remote cloud platform storing engagement activity data representing interactions of potential customers with a marketing campaign; means for generating a unified GUI to display a plurality of the CRM records at a user computing device; means for surfacing a plurality of related rows from the stored engagement activity data related to one of the plurality of CRM records by automatically querying the remote cloud platform via the virtual entity bridge for the plurality of related rows; means for populating the unified GUI with the surfaced plurality of rows; and means for transmitting the unified GUI to the user computing device for display.