Why are Garmin step samples empty but totals correct?

This is expected Garmin behaviour.

This is expected Garmin behaviour.

• Step totals come from Garmin's dailies webhook, sent reliably each sync.

• Step samples (the sub-daily time series) come from a separate epochs webhook that Garmin pushes inconsistently, depending on the device and the granularity it recorded and synced.

When no epoch data arrives for a day, the step samples array is empty even though the total is populated. The total is always present.

Encourage users to sync via the Garmin Connect app for the best chance of sample data.