Just checked my email after making an order at Amazon.com and saw a small "View Order" button in the subject line. I tried to look up whether this is a new feature or not but couldn't find anything.
Does anyone know about this feature and Google Mail does this for other orders? Do you know if it's possible to set up an email message sent to Google Mail so that it adds this button?
Best Answer
It's based on a initiative called Schema.org. Google announced this feature for Gmail in May 2013: http://gmailblog.blogspot.dk/2013/05/take-action-right-from-inbox.html
Quotes from the post (emphasis and linkifying mine):
... and ...
... and ...