Google Ads will enforce a uniqueness check on Lookalike user lists from April 30. Duplicates in Demand Gen campaigns will be blocked.
Google Ads will enforce a uniqueness check on Lookalike user lists from April 30, blocking duplicates in Demand Gen campaigns.
Google Ads will reject Lookalike audiences that match an existing list's seed audience, expansion level and country targeting from April 30.
Duplicate audiences waste budget by bidding against yourself and distort performance reporting across Demand Gen campaigns.
Australian advertisers with complex Demand Gen setups have one week to audit and consolidate before enforcement begins.
PPC managers and agencies running Demand Gen campaigns with multiple Lookalike audiences.
After April 30, new duplicate lists will be blocked and existing ones flagged, potentially disrupting active campaigns mid-flight.
Review all Lookalike audiences in your Demand Gen campaigns and consolidate any sharing the same seed, expansion and country
Document your audience structure so future campaign builds do not accidentally create duplicates