Message specific parameters in the URL
Ability to specify a message specific URL parameter.
A use case will be to append utm_nooverride=1 to the url to allow Google Analytics to attribute traffic correctly by not creating new sessions for transactional emails.
Thanks for taking the time to submit this suggestion. I believe we already offer what you're looking for, as a built-in feature of our Toolbox App. You can find more information on the App here; the feature I think you're looking for is "Link Modifier".
With this app, you can set any number of custom parameters, across one or many messages. I'd recommend reaching out to your Account Manager for more information, or to possibly schedule a demo.
Let me know if there was anything else I could help with, but I think Toolbox is going to be a perfect fit!
Have a great evening,
Jocelyn @ Bronto