At a glance
PostHog Funnel Conversion vs Ecom Conversion is a cross-channel metric that plots PostHog’s behavioural funnel conversion against the conversion rate reported by your ecommerce platform. When the two move together you can trust both. When they diverge, one side is wrong: usually a tracking gap in PostHog or an attribution quirk on the platform. This card is a reconciliation lens, built to catch the moment your behavioural analytics and your order data stop agreeing.
| What it counts | PostHog primary funnel conversion plotted against your ecommerce platform’s conversion rate, on a dual axis. |
| Sample type | Backend API data from PostHog funnel insights and the connected ecommerce platform, aligned on the standard data refresh. |
| Why it matters | A gap between behavioural and platform conversion flags revenue at risk: either orders are happening that PostHog cannot see, or PostHog sees intent that never becomes orders. |
| Reading the value | Watch the gap between the two lines. A divergence of more than 10 percentage points against the platform is flagged for investigation. |
| Currency | percent |
| Time window | 30D |
| Alert trigger | >10pp divergence vs platform |
| Sentiment key | ph_xc_funnel_vs_ecom_conversion |
| Roles | owner, marketing |
Calculation
Calculated automatically from your PostHog data alongside your connected ecommerce platform. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading.Worked example
A representative reading of PostHog Funnel Conversion vs Ecom Conversion for a typical merchant on PostHog. Suppose PostHog reports a 3.0% funnel conversion while your platform reports 3.1%, a healthy near-match. After a checkout deploy on 14 May 26, PostHog drops to 1.8% but the platform holds at 3.0%, a 1.2pp gap that widens to over 10pp on a higher-base funnel. Orders are still landing, so the break is in PostHog’s instrumentation, not in sales. The card isolates that immediately. Cross-reference Primary Funnel Conversion and the Event Tracking Broken alert to confirm the tracking gap. For deeper investigation, use Vortex Mind to trace upstream causes; for natural-language exploration, ask Ask Viq.Sibling cards merchants should reference together
| Card | Why merchants reach for it |
|---|---|
ph_funnel_conversion | Funnels sibling: the PostHog side of the comparison. |
ph_alert_tracking_broken | Nerve Centre sibling: a tracking break that explains a gap. |
ph_xc_traffic_source_vs_revenue | Cross-channel sibling: source vs revenue attribution. |
pos_session_conversion_rate | Conversion sibling: session conversion. |
ph_health_score | Executive sibling: overall tracking health. |
Reconciling against the vendor’s own dashboard
Where to look in PostHog’s own dashboard: In PostHog, read the primary funnel conversion from your funnel insight. For the platform side, read the conversion rate in your ecommerce platform’s own analytics. Place the two periods side by side. Most apparent divergence comes from different conversion definitions rather than a real fault. Why the Vortex IQ value may legitimately differ:| Reason | Direction | What to do |
|---|---|---|
| Definition mismatch. PostHog funnels start wider than platform checkout conversion. | PostHog lower | Compare comparable funnel stages. |
| Attribution window. Platforms attribute orders over a window that PostHog does not mirror. | Variable | Align the windows. |
| Tracking gap. A missing purchase event understates PostHog conversion only. | PostHog lower | Check core events firing. |