Answer engine optimization is the work of making your pages a source that AI answers draw on and cite. An early question asks what causes a problem or what kind of product fixes it, and awareness-stage tactics are built for those. The buyer's questions continue after that.
Once a shortlist exists, the questions narrow. The buyer wants to know how two vendors differ, what the product costs, where their data goes and how long setup takes. Each of those can be typed into ChatGPT or Google's AI Mode as easily as the first question was. When an engine looks for sources on one of them, a page of yours that answers it directly is one it can use.
Finding those later questions takes more than one source. Lean Labs describes building a client's question set from HubSpot sales calls, CRM insights, Search Console demand and competitor prompts. Search Console holds the queries Google recorded for your site, which is one slice of demand. Sales calls and CRM notes hold the questions buyers put to your team while they were evaluating. Combining them gives a list that covers more of the purchase than either does alone.
Suppose a company sells scheduling software to field service businesses. A buyer there could ask a different question at each stage, and a different page would answer each one. The stages are our illustration, and a real purchase can skip steps or return to one.