Tracking-behaviour with utm_source but no utm_campaign

Hello,

I have a question about the campaign-tracking for out website which uses also the marketing campaign report plugin (https://plugins.matomo.org/MarketingCampaignsReporting).

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:

utm_campaign=google_jobs_apply&utm_source=google_jobs_apply&utm_medium=organic

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,

Timo