Send weekly GA4 traffic reports by email with anomaly flags

This template runs a weekly web-analytics report from Google Analytics 4 and delivers it by email, ready to forward to clients or your team. It is built for founders, marketers, and agency operators who want a consistent picture of site traffic without opening the GA4 dashboard.

What it does

Every Monday morning, the Traffic Report agent pulls your GA4 data for the current ISO week and compares it against the prior week. It calculates the change for each metric, flags anomalies that cross the default thresholds, and shapes the numbers into a clean report. The finished report is emailed automatically through Gmail, so a summary lands in the inbox before the week starts.

How it works

The agent works from a set of report definitions that specify which metrics and dimensions to load. Each run follows the same steps:

1. Load three GA4 report definitions covering the metrics and dimensions to track.
2. Apply ISO-week date-range rules to pull this week and the prior week.
3. Calculate deltas between the two periods and flag anything that crosses the anomaly thresholds.
4. Shape the results into a client-ready format and send it by email.

The schedule is set to run once a week at 7am on Monday, so the report is waiting when you log on. Delta calculations and anomaly thresholds come with sensible defaults, and the report structure stays the same from week to week so trends are easy to read at a glance.