Hey
Terra API itself does not restrict how far back you can perform a request, however some providers do impose restrictions:
- Polar: you cannot make a request before the user connects to Terra
- Garmin: activity payloads can only be queried for the last 5 years, other payloads for the last 2 years
- Samsung: payloads can only be queried for the last 30 days
Some providers prevent the same data being retrieved multiple times from their servers. Fortunately, as long as the data is available, Terra intelligently caches payloads that would be otherwise lost, so that you can repeatedly request the same data without worrying about these restrictions.