Google Data Manager API Is the New Default for First-Party Data
Google launched the Data Manager API as a single centralized integration for audiences and conversion events, positioned as the new default for first-party data activation (CustomerLabs, 2026). Data Manager API limits each project to 100,000 requests/day and 300 requests/minute (PPC Land, 2026). Individual requests can contain up to 2,000 conversion events with up to 10 user identifiers each (PPC Land, 2026).