> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gumloop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How Often Does Brain Sync?

About every hour, automatically. Each sync picks up new documents, changed content, deletions, and permission changes from the original system. To update a source right now, open its three-dot menu and choose **Re-sync**.

Syncs are incremental for most sources: only new or changed documents are processed (and billed), so routine hourly syncs are fast and usually free. Direct file uploads never sync on a schedule — they only change when you add or remove files.

You can follow progress on the source's row and page:

| Status               | Meaning                                                                                    |
| -------------------- | ------------------------------------------------------------------------------------------ |
| **Queued / Syncing** | A sync is waiting or running. Content indexed so far is already searchable.                |
| **Active**           | The last sync succeeded.                                                                   |
| **Partial sync**     | The last sync finished but skipped some documents.                                         |
| **Sync failed**      | The last sync stopped early. See [Why did my sync fail?](/help/brain/why-did-my-sync-fail) |
| **Paused**           | Syncing is off until someone resumes the source.                                           |

Each source's page also keeps a history of past sync runs.

When you run a sync, you get an email when it finishes — always on failure, and on success only for syncs long enough that you have probably stopped watching. Automatic scheduled syncs do not send success emails.

## FAQ

<AccordionGroup>
  <Accordion title="Can I change how often a source syncs?">
    Not from the product today. If hourly is too frequent for a source, pause it and Re-sync manually when you want updates. For anything else, [contact support](https://portal.usepylon.com/gumloop/forms/help).
  </Accordion>

  <Accordion title="Does every hourly sync cost credits?">
    Only when it finds new or changed documents. Unchanged documents are never re-indexed or re-billed.
  </Accordion>

  <Accordion title="Why is Re-sync grayed out?">
    A sync is already running, or the source is still a draft awaiting estimate approval.
  </Accordion>

  <Accordion title="I edited a document. When does search reflect it?">
    On the next sync of that source — within the hour, or immediately after a manual Re-sync.
  </Accordion>
</AccordionGroup>

## Related

<CardGroup cols={2}>
  <Card title="Why did my sync fail?" icon="circle-exclamation" href="/help/brain/why-did-my-sync-fail">
    Failure reasons and fixes
  </Card>

  <Card title="When do permission changes show up?" icon="arrows-rotate" href="/help/brain/when-do-permission-changes-show-up">
    Sync timing for access changes
  </Card>
</CardGroup>