Google says the same foundational SEO practices apply to AI Overviews and AI Mode. Pages need to be crawlable, indexed, useful, internally discoverable, and eligible to appear with a snippet. Google also says no special schema is required for those features.
That guidance is specific to Google. OpenAI separately documents OAI-SearchBot access for ChatGPT Search and the use of utm_source=chatgpt.com on referral links. Neither company publishes a formula that lets an agency guarantee a recommendation.
Structured data still has a supporting role when it matches visible content. It can reduce ambiguity and help search features interpret a page, but it should not be sold as an AI recommendation switch.