A simple example
A checkout start shows buying interest. A completed, stored order shows a purchase. Tracking should distinguish the two rather than count both as sales.
Define the outcome first
A contact-button click, a submitted form and an accepted sales opportunity are different actions. For ecommerce, distinguish completed orders from checkout starts. Use smaller actions to diagnose a journey, while keeping reporting and bidding focused on the outcomes that match your goal.
Write a conversion specification
- Action: the exact event that represents success.
- Identity: the order or lead identifier used to detect repetition.
- Value: the revenue or commercial value and its currency.
- Scope: which property or advertising account receives it.
- Rules: consent, exclusions, counting and reporting period.
- Owner: who tests and maintains the implementation.
Test success and failure
Test a genuine successful journey, a failed payment, a page refresh and a returning visitor. A success message without a stored enquiry is not a completed lead journey. For purchases, check the order record against the event rather than relying only on a tag-firing indicator.
Keep reporting interpretable
Changing a conversion definition halfway through a comparison can create apparent growth without additional business. Keep a change log and annotate the reporting period. Conversion totals from different platforms should not be added together when they may claim the same orders.
Choose conversions that represent business progress
A lead-generation business might receive many form submissions but few qualified opportunities. If every submission is treated as equally valuable, the dashboard can look successful while the sales team struggles. Define the stages separately: submission, accepted lead, qualified opportunity and customer. Agree which stage the marketing team can reliably observe and which later stages need feedback from the business.
For a store, apply the same discipline to basket actions and purchases. A basket addition can help diagnose behaviour, but it is not equivalent to a paid order. Track diagnostic events without allowing them to obscure the primary outcome. Before comparing performance, establish whether cancellations, refunds and repeat purchases are included in the reported measure. These definitions belong in the project brief, not only in a reporting tool.
- Document the primary outcome and the supporting actions used for diagnosis.
- Check one action across the browser, collection destination and business record.
- Assign someone to investigate mismatches and record any known gaps.
Plan reliable event collection →
Frequently asked questions
What is conversion tracking?
Conversion tracking records defined business actions, such as a purchase or a qualified enquiry, so teams can evaluate marketing. The action, value, counting rule and destination must all be explicit.
Is every form interaction a conversion?
No. A form start and a successful enquiry are different actions. Define the business outcome and test success and failure paths.
Why might a conversion count be inflated?
Duplicate collection, the wrong trigger or overlapping integrations can inflate counts. Compare representative successful actions with recorded events before adjusting campaign optimisation.
Sources and further reading
Primary material for the concepts discussed here. Our practical checklists and illustrative examples are editorial recommendations. Source links open in a new tab.