> ## Documentation Index
> Fetch the complete documentation index at: https://vital-mintlify-cb144d5a.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# daily.data.forced_expiratory_volume_1.created

> Webhook event fired when new daily forced expiratory volume in one second (FEV1) measurements are ingested for a user.