Google released version 24.2 of the Google Ads API on June 25, bundling four distinct categories of change: account security, AI-content disclosure, Performance Max reporting, and experimentation. None of the features are cosmetic. Each addresses a gap that large accounts or compliance-conscious teams have been waiting on.
Multi-party approvals (MPA) is the release’s most operationally significant addition. The feature requires a second administrator to authorize sensitive account actions, such as inviting new users or raising an account’s access level. For agencies running a shared account structure across multiple clients, MPA is a structural security control, not a convenience feature. A single compromised admin credential can no longer silently add a rogue user or escalate permissions. Teams that have been managing account access through manual checklists should treat this as a prompt to build MPA enforcement into their onboarding and offboarding workflows via the API.
The AI-content disclosure additions are time-gated. The API now surfaces two new asset-level and ad-level fields, SyntheticContentInfo and SyntheticContentAttestation, letting developers identify and tag AI-generated creative at the programmatic level. The fields are currently read-only; write access arrives with v25. The compliance deadline is August 2, when the EU AI Act provisions covering AI-generated advertising content take effect. That leaves roughly six weeks for advertisers serving EU audiences to build the detection and labeling pipeline. Teams using third-party creative generation tools should verify whether those tools will expose the necessary metadata to populate attestation fields before v25 ships.
Performance Max receives two long-requested enhancements. The performance_max_placement_view report can now be segmented by ad_network_type, giving advertisers a network-level breakdown of where PMax spend is landing across Search, Display, and partner placements. Separately, advertisers can now link a YouTube brand channel programmatically, tightening video campaign integrations for accounts that run both search and YouTube inventory. A fresh option can also auto-generate ad text assets straight from a landing page’s content, trimming the manual asset-creation step on new campaign builds.
Experimentation gets the widest expansion. A new COMPARE_CAMPAIGNS workflow lets a single test run up to five arms at once, custom Performance Max setups among them. A second new experiment type splits traffic inside one PMax campaign to compare creative text variants and final-URL expansion head to head. Most campaign types had been capped at two-arm tests until now, so jumping to five arms meaningfully sharpens how efficiently an agency can design a test.
Google also reorganized how it publishes version notes, pulling breaking changes apart from new features and adding a standalone guide for deprecations and unversioned shifts. As Search Engine Land reported, the cleanup targets the upgrade friction that has long made even minor-version moves cost more engineering time than they should.
The MPA rollout, the AI disclosure clock, and the expanded experimentation tooling each carry different urgency: MPA should be reviewed against current account-access policies this sprint, AI attestation build-out needs to begin now to meet the August 2 deadline, and COMPARE_CAMPAIGNS is an efficiency gain to schedule for the next test cycle.
Reported by Anu Adegbola for Search Engine Land, published June 25, 2026.
