GAM Legacy Reports Are Gone: How Publishers Should Rebuild Reporting and Monitoring in 2026

On May 4, 2026, Google deactivated the legacy Reports tool in Google Ad Manager - and the scheduled reports many publishers ran every morning stopped with it. Interactive Reports is now the only reporting interface, but the migration isn't automatic and the new "notification flags" aren't a full monitoring layer. Here's how to rebuild your reporting properly, what Interactive Reports does and doesn't cover, and why the rebuild is the right moment to upgrade from native flags to real daily monitoring.