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

# Approve and run migrations

> Move cold and hot objects based on audit recommendations — always explicit, never automatic.

<Info>
  **BlobRouter v0.1** · Last updated: August 2026 · Architecture version: **2.0**
</Info>

After a free audit, BlobRouter ranks recommendations (for example migrate cold objects to B2, hot objects toward R2). **Nothing moves until you approve.**

## Prerequisites

* Completed AWS audit with recommendations
* Paid plan that includes migration
* Destination provider credentials connected ([R2](/guides/connect-r2) and/or [B2](/guides/connect-b2))

## Flow

1. Open **Audit** / recommendations in the [dashboard](https://app.blobrouter.com)
2. Review affected size, current cost, and projected savings
3. Choose a target provider allowed for that recommendation
4. Click **Approve**
5. BlobRouter queues a migration job and copies objects server-side using your router credentials
6. Track status on the migration detail view

## What approval means

* You explicitly authorize each recommendation
* There is no auto-remediation in v1
* You can dismiss recommendations you do not want

## After migration

* Savings appear on the dashboard as objects land on cheaper providers
* For **new** uploads going forward, install the [SDK](/quickstart) so routing stays optimized

## Troubleshooting

| Symptom                              | Fix                                                           |
| ------------------------------------ | ------------------------------------------------------------- |
| Approve returns upgrade / plan limit | Migration requires a paid plan                                |
| Credentials missing                  | Connect the target provider under Providers                   |
| Migration stuck / error              | Check destination bucket permissions; retry after fixing keys |

See [How it works](/concepts/how-it-works) and [Architecture](/architecture) for the migration pipeline.