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# Provisioning

For dedicated PO boxes, the provisioning flow is as follows. See the [Provision a Lockbox](/v2026-01-15/api/lockbox/provision) API reference for endpoint details.

Also see: [Mail Uploads](/v2026-01-15/guides/lockbox-providers/mail-uploads) | [Rescans](/v2026-01-15/guides/lockbox-providers/mail-uploads#rescans)

### Chariot requests a new PO Box via Email

Chariot sends an email to the lockbox provider containing:

* The **organization's name and EIN** (e.g., "Some Nonprofit, 12-3456789")
* A **request ID** generated by Chariot (e.g., `req_01kkmjrdgdjtwgk7wdkba1kn9s`)

### Provider provisions the PO Box

The provider reserves and sets up the new PO box (e.g., PO 9876).

### Provider notifies Chariot via API

Once the PO box is live, the provider sends a request to the Chariot provisioning endpoint:

**`POST /lockbox/provision`**

```json title="POST /lockbox/provision"
{
  "request_id": "req_01kkmjrdgdjtwgk7wdkba1kn9s",
  "location_id": "po_9876",
  "address": {
    "line1": "123 Main St",
    "line2": "STE 12345",
    "city": "New York",
    "state": "NY",
    "zip": "12345-1234"
  }
}
```

## Request ID

* The **request ID** is a one-time unique value generated by Chariot for each PO box request
* The provider returns the request ID when notifying Chariot that the box has been provisioned
* The request ID is **not** included in subsequent API calls (e.g., batch uploads)