Gmail and Trello – What Causes ‘Open Card in Trello’ in Gmail Messages?

gmailtrello

I receive Trello updates in Gmail. Recently, Gmail adds an Open Card in Trello button in the conversations list:

my Gmail inbox

How does that work? Is it triggered by a URL in the message?

Is this functionality unique to Trello?

Best Answer

No, it's not unique to Trello. It's a feature that Gmail has that certain apps have taken advantage of to tell Gmail things about it to give you a shortcut without having to open the message.

For instance, Google Calendar invitations have an "RSVP" button in the conversation subject. If Gmail recognizes that there's a package tracking number in the message, it adds a "Track" button. An Open Table reservation confirmation results in a "View reservation" button.

They're called "Quick Actions". The apps generating the message need to format the message in a particular way.