We need to be able to send an email to 1 email address when any board card is updated, completed, checklist, attachment added, anything is done to a card? We need to include a unique id in it so we can link it to our other software. Like a serial number or some back end id for each card that is unique to it. I assume there is something that Trelo has that identifies that?
Also, we have a custom field that we would like to pass in this email, do you know how to pass a custom field?