To connect LeCoach with Intervals.icu:
Go to Settings - Integrations.
Press 'Connect with Intervals.icu'. If you don't have an Intervals.icu account yet, use 'Create Free Intervals.icu Account' first — Intervals.icu is free.
A pop-up opens where you log in to Intervals.icu and approve the connection. Note that your browser may block this pop-up — allow pop-ups for lecoach.app if nothing appears.
What happens after connecting
LeCoach immediately syncs your current data and then starts a full import of your training history (up to 15 years) in the background. Depending on how much history you have, this can take a while — you can keep using LeCoach while it runs.
Make sure your devices feed Intervals.icu
Your activities need to reach Intervals.icu from the platforms where you record them. On the Intervals.icu connections page, connect every platform you use (Garmin, Zwift, Wahoo, etc.) and enable 'Download activities'. Important: connect the original recording source — a Strava-only connection does not deliver complete data. See Activities from Strava are not showing up in LeCoach.
Missing data?
If activities show in Intervals.icu but not in LeCoach, run a Full Intervals.icu Sync from Settings - Integrations (you can choose how many years to re-import; this is limited to once per day). More troubleshooting: Why can't LeCoach see my latest Intervals.icu data?