We have launched an AMP version of our site. Most of our pages have been validated. We seem to have some errors on some pages, most of which we've fixed. However, our AMP version still doesn't appear on the mobile SERP, regular pages do appear. Any ideas about how can we assist it? What might cause it?
our AMP version still doesn't appear on the mobile SERP,
How do you come to this conclusion?
There are many reasons why AMP pages may be not appearing. Do you have the correct canonical link tags (rel="amphtml" and rel="canonical") in place respectively for both the amp and non-amp versions of your pages? Are both versions of the pages identical in terms of content?
AMP is aimed at the mobile first index. Needs to be spot on to qualify. As keyply recommends, fix all errors on site, not just the AMP presentation ... as those will have a detrimental effect on the site in general.
Certainly if all the pages in question have any errors on them, they wont be shown. But if only a few have errors and the other are fine the ones that are fine will be displayed. I am basing this assertion on my own experience.