Help with "Your domain has no CNAME record" for Subdomain

This does not answer my question in any way. Before asking my question, I have reviewed the website: https://help.shopify.com/en/manual/domains/add-a-domain/connecting-domains/connect-domain-manual.

There was nothing on that page that helped me, which is why I posted in this forum.

Your response does not refer to any of the information that I provided regarding my issue.