Follow these tips to ensure your AMP emails render correctly and consistently across all platforms and browsers that Gmail supports.
The summary text displayed next to the subject line when viewing emails in your inbox (preheader) is based on the
text/plainpart of your email and doesn't take the
text/x-amp-htmlpart into account.
Gmail's search feature currently doesn't index the dynamic parts of the email. Make sure the
text/plainpart of the email contains the most important keywords to ensure users can find your emails easily.