UTM parameters: name campaigns without overstating attribution

At a glance

UTMs describe a campaign link’s context. They help group collected traffic; they prove neither a person’s identity nor a channel’s incremental effect.

Global network map in an empty intelligence briefing room Illustration · fictional scene
In this article

Fictional example: a readable convention

The table gives demonstration values for an email campaign. Parameter names remain technical; values should be consistent and contain no personal data. UTM values are case sensitive: Newsletter and newsletter can be distinguished.

ParameterFictional valueUse
utm_sourcenewsletterCampaign origin.
utm_mediumemailMedium.
utm_campaignlaunchCampaign name.
utm_contentheroLink variant.
utm_idlaunch_01Campaign identifier.

Check the complete link journey

  • Define a common convention for source, medium and campaign, then useful identifiers and variants. Avoid different spellings for one channel.
  • Test encoding, redirects and arrival on the intended page with parameters preserved. Then inspect source and campaign dimensions in the appropriate report.
  • Reserve this tagging for external campaign links. Use an event plan for internal links instead of acquisition labels; do not claim a UTM always starts a new GA4 session.

Interpret data within its limits

Missing parameters, privacy choices, shared links and attribution models can change observed results. Never put an email address, name or personal identifier in a campaign URL. Compare conversions and costs within an explicit scope; a label does not establish causation.

Primary references

Verify tracking after every redirect

Links correctly tagged initially can lose parameters through shortening, redirects or domain changes. Test the published journey end to end and inspect the resulting report. Keep a shared naming convention so channels do not fragment across case or spelling variants.

  • Click links from the actual publishing medium.
  • Check destination parameters and actual collection.
  • Separate external traffic from internal navigation.

Should menu links carry UTM parameters?

They are internal navigation, not new acquisition sources. Use suitable navigation measurement rather than artificially assigning an external campaign.

Primary reference: Google Analytics — Campaign URL data. Related method: read the practical guide.