Why it matters. Advertisers in regulated verticals like finance and health must secure case-by-case approval before OpenAI will run their ads at all.
Signal from help.openai.com · read the original.
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Help.openai.com documents that OpenAI matches conversion events to ad clicks using a click reference called oppref, advanced matching, and modeled measurement when direct signals are incomplete, deduplicating pixel and API events via a shared event ID.