GLOSSARY
Technology
THE SHORT VERSION
UTM parameters add campaign labels to a URL. Google Analytics documents parameters such as utm_source, utm_medium and utm_campaign for collecting campaign information. The labels describe the link you created; they are not proof that a campaign caused a sale. Source: Google Analytics: collect campaign data with custom URLs
A travel example
For an illustrative autumn newsletter, you might use source=newsletter, medium=email and campaign=autumn_city_breaks. Use the actual parameter names beginning with utm_ when building the link. Keep the naming consistent so the team can recognise the same campaign in its reports.
Agree names before sharing links
Keep a simple register with the destination page, channel, campaign label and person responsible. Test the link before it goes into a message or advert. This reduces avoidable reporting differences caused by two people naming the same activity differently.
Follow the enquiry through
Decide how a campaign label connects to a valid enquiry and, where your systems allow, the later booking record. Review that process alongside the attribution model rather than treating a tagged visit as a booking. Keep personal information out of your campaign naming convention.
Written and updated by Travelgenix. Sources checked on 16 October 2026. Worked examples and checklists are editorial illustrations and recommendations, not customer results.
Sources
The official pages behind this explanation. This is general information, not legal advice, and rules change, so check the latest version.
RELATED
Attribution
Attribution assigns credit for a conversion to marketing interactions according to a rule or model. The result depends on the model and available data.
Enquiry conversion rate
Enquiry conversion rate measures how often a defined audience or set of visits produces an enquiry. State the numerator, denominator and reporting period.
How to measure enquiries from your travel marketing
Choose a clear enquiry definition, tag campaign links consistently and follow the outcome into your sales records. Keep visits, enquiries and bookings distinct.
All glossary terms