Ecommerce Paid Ads Audit Checklist: 42 Checks Before You Scale

A paid ads audit should answer one business question: where is profit being created, lost, or misreported?

Looking only at campaign ROAS is not enough. Ecommerce performance depends on tracking, product margin, customer demand, creative, the website, inventory and the way Meta Ads and Google Ads work together.

Use this 42 point checklist before increasing spend, changing agencies or rebuilding an account.

Start with the business numbers

1. Confirm the real selling price

Use the amount customers actually pay after discounts, not the full retail price shown in the catalogue.

2. Confirm cost of goods by product

Do not use one average margin when products have different costs. A campaign can look profitable while spending heavily on low margin items.

3. Include shipping paid by the business

Free shipping is not free to the store. Include fulfilment, packaging and carrier costs in the order economics.

4. Include payment processing fees

Card and platform fees reduce the amount retained from every order.

5. Estimate refunds and returns

A product with strong tracked revenue can still be weak after returns, replacements and support costs.

6. Calculate contribution margin

Contribution margin is the money left after variable costs. It is more useful for ad decisions than gross revenue alone.

7. Calculate break even ROAS

A simple starting formula is:

Break even ROAS = 1 divided by gross margin

A 40 percent gross margin produces an estimated break even ROAS of 2.50 before fixed operating expenses.

8. Separate new and returning customers

Returning customers may make platform ROAS look stronger even when new customer acquisition is becoming less efficient.

9. Check cash flow capacity

Scaling can create a cash problem when inventory, shipping and advertising are paid before revenue is released.

Audit conversion tracking

10. Match platform purchases to store orders

Compare Meta Ads, Google Ads and GA4 with Shopify or your ecommerce platform. Exact agreement is not expected, but large unexplained gaps require investigation.

11. Confirm purchase events fire once

Duplicate events inflate revenue and train bidding systems on false data.

12. Confirm purchase events fire after successful payment

A checkout page view or failed payment should not be counted as a completed order.

13. Confirm revenue values are dynamic

Every purchase should send the real order value instead of a fixed test value.

14. Confirm the currency is correct

A mismatch between store currency and advertising account currency can make reported performance meaningless.

15. Review Meta Pixel and Conversions API deduplication

Browser and server events should share the correct event identifiers so Meta can treat them as one purchase.

16. Review Google Ads conversion actions

Identify which purchase actions are primary and used for bidding. Duplicate Google Ads and GA4 purchase imports can cause double counting.

17. Check enhanced conversions

Confirm first party customer data is being passed correctly and that diagnostics do not show implementation problems.

18. Remove test orders from analysis

Internal orders, payment tests and development transactions should not influence bidding decisions.

Audit Meta Ads

19. Confirm the campaign is optimizing for purchases

Traffic or engagement campaigns may produce cheap clicks without producing buyers.

20. Review campaign fragmentation

Too many campaigns and ad sets can divide data and budget. Consolidation often gives the delivery system more useful conversion information.

21. Review audience restrictions

Overly narrow targeting can increase costs and prevent Meta from finding buyers outside initial assumptions.

22. Review creative variety

Different crops of the same image are not different concepts. Test distinct customer problems, benefits, proof, objections and offers.

23. Identify creative fatigue

Review changes in spend, cost per purchase, click through rate, conversion rate and frequency. Do not diagnose fatigue from frequency alone.

24. Compare prospecting and remarketing

Remarketing can report high ROAS while reaching people already likely to purchase. Judge acquisition performance separately.

25. Review landing page alignment

The ad promise, product shown, price and offer should match the page reached after the click.

26. Check placement and format coverage

Make sure important creative concepts are available in square, vertical and story friendly formats without unreadable text or unsafe cropping.

Audit Google Ads

27. Review conversion goals used by bidding

Campaigns should optimize toward meaningful purchases or qualified outcomes, not page views or minor actions.

28. Separate brand and nonbrand demand

Branded traffic usually converts differently from generic discovery traffic. Combining them can hide the true acquisition cost.

29. Review search terms

Look for irrelevant intent, information searches, competitor traffic and terms that do not match the offer.

30. Review product level performance

Campaign averages can hide profitable products and persistent loss makers. Analyse item ID, product type, brand and margin.

31. Review Merchant Center diagnostics

Disapprovals, missing identifiers, price mismatches and shipping issues reduce eligible inventory.

32. Improve product titles and images

Shopping performance depends heavily on product data. Titles should describe what the item is using the language customers search.

33. Review Performance Max channel mix

Use available channel, asset group and product reporting to understand whether the campaign is finding useful demand or relying heavily on brand traffic.

34. Review bid targets against economics

A target ROAS should reflect margin and business goals. An unrealistic target can restrict volume, while a low target can accept unprofitable sales.

Audit the website and offer

35. Review mobile speed and usability

Most paid social traffic arrives on mobile. Slow loading, layout shifts and hard to tap controls reduce conversion.

36. Review the product page above the fold

Customers should quickly understand the product, main benefit, price, offer, proof and next action.

37. Review trust signals

Use authentic reviews, clear shipping information, returns, contact details and payment options. Avoid unsupported claims.

38. Review checkout friction

Unexpected shipping costs, limited payment methods and unnecessary fields cause qualified customers to leave.

39. Review offer strength

Advertising cannot permanently compensate for weak value. Compare price, bundles, guarantees, bonuses and delivery terms with credible alternatives.

Audit the operating system

40. Check inventory before scaling

Do not increase spend on products that may soon be unavailable or delayed.

41. Document recent changes

Record budget changes, bid strategy changes, tracking updates, promotions, website releases and stock events. Performance shifts often follow operational changes.

42. Create a prioritized action plan

Rank findings by expected profit impact, confidence and effort. Fix measurement and economics before creative opinions or cosmetic account changes.

The correct audit output

A useful audit should not end with dozens of disconnected recommendations. It should produce:

1. A verified measurement baseline
2. Product level profit targets
3. A list of waste to remove
4. A list of profitable areas to protect
5. A creative and landing page testing plan
6. A controlled scaling plan
7. Clear owners and review dates

For platform selection, read Meta Ads vs Google Ads for ecommerce. For a deeper measurement review, continue with the Shopify ads tracking audit.

Need a second set of eyes?

Beelog applies this framework to Meta Ads, Google Ads, product margins, tracking, creative and landing pages as one connected system.

Book Your Free Profit Audit.