Agree on an attribution model
Separate the first known ad visit, the last tagged visit, and the source of the specific request. Do not overwrite the important source with empty values when returning directly. Campaign and parameter names must be consistent so that reports are not fragmented due to different case or accidental notation.
Continue with: Google Ads offline conversions: prepare your CRM data.
Check the parameter route
Open the advertising link, go through the redirects, several pages and the form. Check the mobile browser, change the language and return to the site. To save data, agree on the permitted mechanism and term, taking into account the consent settings. Keep ad click IDs separate if they are required for the agreed conversion import method.
Continue with: OLX enquiries in CRM: attribution and its limits.
Verify the enquiry in CRM
Test tagged visit, direct visit and repeat visit. Compare parameters in URLs, form data and CRM fields. Do not transmit personal data within UTM. Leave the possibility of an unknown source in your reports: not every call or conversion can be accurately matched to an ad.
Continue with: Call tracking: static and dynamic numbers explained.
Is UTM enough for Google Ads offline conversions?
Not for every import method. Check the requirements of the selected mechanism for identifiers, event time and allowed data.