> 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.md).

# Failures, errors and retries

Common questions about failures, errors and retries.

## Articles

{% content-ref url="/pages/HzO9jHOjtgjQ0PyJf6Ld" %}
[Are my webhook 401/404/500 errors on Terra's side?](/faq/help-topics/webhook/failures-errors-and-retries/response-codes-are-your-server.md)
{% endcontent-ref %}

{% content-ref url="/pages/jp5kdKvFiHHdm4EtlQvI" %}
[Why is my webhook returning 504 errors?](/faq/help-topics/webhook/failures-errors-and-retries/ack-fast-process-async-timeout.md)
{% endcontent-ref %}

{% content-ref url="/pages/jyIbXwP9k0HjR4yZgN8J" %}
[When are failed webhooks redelivered, and can I resend them?](/faq/help-topics/webhook/failures-errors-and-retries/retry-policy-and-redelivery.md)
{% endcontent-ref %}