Starting September 21, 2026, Shopify is rolling out a major overhaul of session measurement in its Analytics suite. The goal? Strip away bot and system noise so merchants see a truer picture of human shopper activity. While the numbers you’ve been tracking—orders, sales, and customer counts—remain untouched, session‑based metrics like sessions, conversion rate, and average order value may shift. This post breaks down what’s changing, who it impacts, and the concrete steps you should take to keep your data reliable.
What’s Changing in Session Measurement
Shopify’s new logic applies three key refinements:
The net effect is a new baseline for any metric that relies on sessions. Expect the total session count to drop slightly (bot traffic is removed) and conversion‑related percentages to adjust accordingly.
Who Is Affected: Merchants vs. Developers
Merchants – The primary audience for the updated Analytics UI. Their dashboards, standard reports, and automated email summaries will reflect the new session calculations automatically. No code changes are required, but merchants need to understand the new baseline when comparing historic data.
Developers – Anyone building custom apps, private integrations, or third‑party reporting tools that consume Shopify’s analytics APIs. The underlying data model for sessions hasn’t changed, but the values returned from the sessions field will now align with the new measurement logic. If you’re using the session count to trigger alerts, calculate ROI, or feed BI dashboards, you’ll want to adjust any thresholds or historical baselines.
Impact on Your Reports
Because the session count will likely shrink, conversion‑rate percentages (orders ÷ sessions) may rise even though order volume stays the same. Conversely, metrics that divide revenue by sessions—like average order value per session—could appear lower. When you pull reports that span the September 21 cut‑over date, treat the data as two separate baselines rather than a continuous trend.
Quick sanity check – Run the same date‑range report for the week before and the week after the rollout. You’ll see the session number dip, but orders, sales, and customer counts remain stable. This confirms the change is measurement‑only.
Action Steps for Merchants
Technical Details & Example for Developers
If you query the Analytics API, the shape of the response is unchanged, but the values reflect the new logic. Below is a GraphQL example that pulls sessions and conversion rate for the last 30 days:
graphql
query SessionsReport($storeId: ID!, $start: DateTime!, $end: DateTime!) {
shop(id: $storeId) {
analytics {
sessions(start: $start, end: $end) {
count
conversionRate
}
}
}
}
What to watch for
count field will be lower than pre‑Sept 21 data for the same traffic volume.conversionRate may appear higher because the denominator (sessions) is smaller.For apps that rely on real‑time session alerts (e.g., “traffic spike” notifications), you may want to add a buffer to your threshold. A 10‑15% dip in session count after the rollout is expected and not a cause for alarm.
Conclusion & Next Steps
Shopify’s session measurement improvements give merchants a cleaner, human‑focused view of traffic, but they also introduce a new baseline for every session‑based metric. Merchants should update their reporting cadence, adjust KPI targets, and educate teams about the shift. Developers need to verify that any custom logic consuming session data aligns with the new numbers and, if necessary, recalibrate thresholds.
Ready to keep your analytics accurate? Review your dashboards today, update any automated alerts, and share this guide with your team. For deeper technical support, reach out to Shopify’s Partner support or drop a comment below.
