The UTM parameters that already exist in the campaign links are automatically recorded by etracker if the option is activated: Settings → Integration → Account → Automated tracking → Mapping of Google and Piwik Pro campaign parameters.
If the corresponding option is activated in the account settings, a mapping of the following parameters takes place:
UTM-Parameter → etracker Parameter
utm_medium → etcc_med
utm_campaign → etcc_cmp
utm_source → etcc_ori
utm_term → etcc_key
utm_content → etcc_var