> 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/storage-destinations-s3-sqs-supabase-sql-gcs/version-prefix-folder-not-date.md).

# Why is my S3 folder named like a date?

**The dated-looking folder (for example `2022-03-16/`) in your cloud-storage destination is the API version prefix, not a data date.**

It is a global setting and stays constant as the top-level object prefix for every payload written, so all new objects land under it regardless of when they arrive.

Folder names below it map to event types (`activity`, `sleep`, `daily`, `auth_success`, `deauth`, `large_request_processing`, etc.), and filenames carry the actual event `start_time`.

This is expected behaviour. See [cloud storage destinations](https://docs.tryterra.co/health-and-fitness-api/integration-setup/setting-up-data-destinations/cloud-storage-s3-gcp).


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