gmail: how to customize title for my emails?

Question

Recently I booked reservation in one hotel and received email with confirmation.

The surprise was to see in my gmail inbox special 'button' in the email record (see screenshot, "Modify reservation" button).

I believe that are some options for email which gmail handles in special way.

How to customize email to display such headers?

Thank you very much for any help!

Answer 1

Google have developed something called Actions in the Inbox for Gmail, which seem to be what you were trying to find out. From the link page above:

Actions enable users to interact with your product or service right inside Gmail.

For instance, when a user receives an invitation to an event, she may be presented the option to RSVP interactively to the event from right inside the invitation. When she receives a notification that a magazine subscription is about to expire, she may be presented the option to renew it right from the notification.

Actions can be declared in two ways:

• as In-App Actions: In-App Actions are handled in-place, inside Gmail, without sending the user to any other website.
• or as Go-To Actions: Go-To Actions can be used to provide a direct link to the page where the action can be performed.

The latter, Go-To actions, sounds like what you were looking for.