> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/data-api-sdk/webhooks-dedup-and-sync-reliability/oura-app-vs-terra-discrepancy.md).

# Why do Oura payloads differ from the Oura app?

Discrepancies between the Oura app and Terra usually have two causes:

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**Sync timing.** The Oura app can show data from the ring before it has synced to Oura's cloud, and Terra pulls from the cloud API, so a not-yet-synced ring creates a temporary gap. The user can verify cloud sync on Oura's web dashboard.
{% endstep %}

{% step %}
**Field definitions.** Terra's `activity_seconds` is total non-sedentary time across the day, whereas Oura's Activity Time refers only to tracked workout sessions. They measure different things rather than being wrong.
{% endstep %}
{% endstepper %}