> 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/webhook/failures-errors-and-retries/retry-policy-and-redelivery.md).

# When are failed webhooks redelivered, and can I resend them?

**Failed webhook deliveries are retried automatically with exponential backoff** (roughly 5 min, 30 min, 1h, 2h, 4h, up to about 8 retries), always to your currently configured URL. All failures from an outage are generally resent within a little over 24 hours.

A failed user connection attempt is **not** retried. The user must re-run the connection flow.

Delivery status is visible in the dashboard debug log: failed attempts show their response codes and whether retries succeeded. You can also:

* manually resend any individual event from its details panel, or
* backfill missing data via the [REST API](https://docs.tryterra.co/health-and-fitness-api/managing-user-health-data/requesting-historical-data).

See [receiving data updates](https://docs.tryterra.co/health-and-fitness-api/managing-user-health-data/receiving-data-updates).