Tracking gaps - pixel and CAPI issues

Tracking gaps - pixel and CAPI issues

Tracking gaps are one of the most common issues Campaiyn detects in ad accounts. When your Pixel is not firing correctly or CAPI is missing, Meta cannot see your conversions -- which means it cannot optimize your campaigns toward your actual goals.

How Campaiyn detects tracking gaps

During a scan, Campaiyn checks your account for signals of tracking issues:

• Whether a Pixel is connected to your ad account
• Whether any Purchase or Lead events have been received recently
• Whether server-side (CAPI) events are present alongside browser events
• Whether event volume has dropped significantly compared to previous periods

If any of these checks fail, your Budget Efficiency and Delivery Health pillar scores will be negatively affected.

Common tracking gap scenarios

Scenario 1: No pixel events in the last 7 days

This means Meta has not received any conversion events from your website. Possible causes:

• The Pixel was removed from your website accidentally
• A theme update broke the pixel code
• The Pixel ID in your ad account does not match the one on your site

Fix: Install the Meta Pixel Helper Chrome extension and browse your website. If no events fire, the pixel is not installed correctly.

Scenario 2: Browser events present but no server events

This means your Pixel is working, but CAPI is not set up. You are missing the conversions that iOS/Android users and ad blocker users generate.

Fix: Follow the CAPI setup guide to add server-side tracking.

Scenario 3: Event volume drop

You had tracking working, but recent event counts are significantly lower than normal. Possible causes:

• A website change broke the pixel on certain pages
• A Shopify or plugin update disrupted the integration
• The Pixel ID was changed or duplicated

Fix: Open Meta Events Manager and check the event activity log. Look for events that have stopped firing or show sharp drops in the graph.

Scenario 4: Mismatched Pixel ID

The Pixel ID in your ad account is different from the one installed on your website. This means conversions are being sent to the wrong pixel and are not attributable to your campaigns.

Fix: In Meta Events Manager, find your active Pixel ID. Cross-check it with the ID installed on your site using Pixel Helper.

Verifying your tracking is working

1. Go to Meta Events Manager > Test Events
2. Enter your website URL
3. Browse through your site: visit a product page, add something to cart, and complete a test purchase if possible
4. Watch the event log for PageView, ViewContent, AddToCart, and Purchase events
5. Check whether events show as "Browser" only, or both "Browser" and "Server" (indicating CAPI is working)

Impact on your health score

Fixing tracking gaps is one of the highest-ROI improvements you can make. Once Meta can see your conversions again:

• The algorithm can optimize toward actual buyers instead of clicks
• Your campaign learning accelerates
• Your cost per result typically drops over the following 1-2 weeks as the algorithm recalibrates

After fixing your tracking, run a new Campaiyn scan to see your updated Budget Efficiency and Delivery Health scores.