How to tag a campaign link so your report can read it

Any link you send people to your site can carry tags after a question mark: utm_source, utm_medium and utm_campaign are the three that matter most.

Pick one spelling for each and keep it. If one email says utm_medium=email and the next says utm_medium=Email, your report shows two channels instead of one.

Keep a shared sheet of the tags you use, and build every link from it. Ten minutes of care at the start saves an afternoon of guessing at the end of the month.