Tracking-behaviour with utm_source but no utm_campaign


I have a question about the campaign-tracking for out website which uses also the marketing campaign report plugin (

How is the behaviour in tracking when the link contains a utm_source but no utm_campaign?

For example links from google jobs have the following utm-parameters:


In my matomo I have the “google_jobs_apply” in the sources but also in the campaigns.

Is the an explanation for this?

Thanks for some help!

Best regards,