In my custom app (i.e. not a Shopify app) I am creating products on runtime and if they don't get sold I delete them.
I just discovered accidentally that these temporary products are actually published on Google and now they all lead to 404 errors. That can turn out to be a SEO disaster in the long-term.
Can you please advise how I could make sure that a product I am creating on runtime is only available on the Online Store and nowhere else (especially not on Google) ?