Google Ads API: visible AI-attestation fields are not always writable

A schema can expose a field before a particular API version permits changing it. Google’s synthetic-content attestation notes make this distinction explicit, so a creative operations tool should not infer write support from a field appearing in generated client code.

Separate what the tool reads from what it promises

Our recommendation is to document the API version for the exact operation being offered to a user. If a tool displays attestation information, state whether that value is read from the platform or submitted by the advertiser. Avoid making a successful local form submission look like a successful platform mutation.

For supported write operations, preserve the request result and read the value back where appropriate. For unsupported operations, make the limitation visible to the operator and keep the intended action in a reviewable state. An immutable-field error should not be silently converted into apparent success.

Attach provenance to the creative workflow

The change does not determine whether a particular asset requires disclosure, nor does it verify how that asset was produced. Those are separate product-policy and provenance questions. This record concerns the documented interface boundary.

Before a team relies on automated attestation, ask it to demonstrate the operation against its selected version. The supplied card keeps the older-version limitation and the documented v25 transition together, allowing a reviewer to distinguish an implementation bug from a capability that the chosen version never supported.

The governing record is Google Ads API release notes — v22.2. This edition checks the provider documentation; it does not inspect a studio account or certify a shipped build.

Inspect the evidence

Download the applicability and deadline record. The extraction separates documented facts from our analysis and unknowns.

Further reading in the existing archive: AI Creative Testing Volume Benchmarks for Mid-2025; Apple's unified campaign management API: a checklist. These links provide background; this check does not independently verify their full contents.