Hey!
We recently (last week) purchased the Premium Features. Since installing Matomo we have had an issue with no data for the source or medium showing up in the Acquisition → Campaigns area.
Example of a source/medium from an email send.
https://retirementessentials.com.au/news/centrelink-age-pension/age-pension-mythbuster-where-will-you-end-up/?utm_source=mailchimp&utm_medium=email&utm_campaign=enews231212
We have also tried this with the mtm_source=mailchimp & mtm_medium=email with no success.
Would appreciate any ideas surrounding how to fix this!