Measurement basics: choose useful marketing metrics

Start with an outcome

Choose an outcome your business values and define how you measure it. Separate activity metrics, such as visits, from outcome metrics, such as qualified enquiries or sales.

Write down the limitations

Tracking depends on consent, browser behaviour, attribution rules and implementation. Totals across platforms may differ. Understand the definitions before combining figures.

Build a review rhythm

Review performance at a cadence suited to your sales cycle. Compare similar periods and note budget changes, seasonal effects and tracking changes. Explain what you know and what remains uncertain.

Separate activity, opportunity and outcome

A marketing report is easier to understand when it distinguishes three levels. Activity includes impressions, clicks and visits. Opportunity includes useful enquiries or sales conversations. Outcome includes booked work, purchases and the commercial result. A strong activity number does not automatically establish a strong outcome.

Choose a small set of metrics that reflects the business goal. A local service company may need qualified enquiries and booked jobs, while an online shop may need completed purchases and the associated economics. Define each measure before comparing channels.

Write a metric dictionary

For each metric, record what it means, where the information comes from and what it does not prove. If a conversion records a button click, state that clearly. If a sales figure includes only confirmed bookings, do not compare it with a platform’s broader enquiry count as if they described the same event.

Note the date rule too. An enquiry date, an advertising interaction date and a purchase date can produce different totals within the same calendar period. Keeping definitions visible reduces avoidable disagreements in reporting meetings.

Three calculations that need context

Cost per enquiry

Divide the relevant spending by the number of recorded enquiries. The result is useful only when the spending and enquiries refer to a comparable scope and period. Explain whether management fees or only media spend are included.

Cost per qualified enquiry

Use enquiries that meet agreed criteria. A consistent definition is essential. If criteria change, show that change alongside the comparison rather than suggesting the marketing alone caused the difference.

Return on advertising spend

A revenue-to-ad-spend comparison can help with analysis, but revenue is not profit. Consider the costs of fulfilment, refunds and other expenses before reaching a commercial conclusion. Where revenue attribution is incomplete, explain the limitation.

Use an illustrative example carefully

A campaign that spends £400 and records 20 enquiries has a media cost of £20 per enquiry. If only 8 meet the agreed qualification criteria, the media cost per qualified enquiry is £50. These calculations describe different parts of the same activity.

They do not show what the campaign earned or whether it was profitable. That requires later sales outcomes and cost information. The example is illustrative and should not be used as an expected cost for your business.

Build a reporting conversation around decisions

Start with the goal, summarise the evidence and identify what changed. Note tracking issues, budget changes and the sales cycle. Then discuss what the business should do next: repair measurement, clarify a page, refine an offer or collect more evidence.

A report should make uncertainty visible. Small samples, incomplete attribution and delayed sales outcomes can limit the conclusion. Avoid treating a short-term movement as proof that a tactic always works or never works.

Marketing metrics FAQs

Is click-through rate a business result?

It describes interaction relative to impressions. It does not establish lead quality, sales or profit.

Should platform totals always match?

Not necessarily. Check event definitions, attribution, date ranges and technical limitations before combining them.

Which metric should I choose first?

Begin with the outcome you value and work back through the customer journey. Read our beginner measurement guide and qualified lead article for practical next steps.