What do you check first when a local business is missing from Google local results?

Google says local results are based on relevance, distance and prominence, and that there is no way to request or pay for a better local ranking.
https://support.google.com/business/answer/7091?hl=en
The full answer on how to do a local SEO audit is on the blog:
https://aiwebpageseo.com/blog/how-to-do-a-local-seo-audit
When you audit a Business Profile, what problem do you find most often?