## Reassignment history

> ⚠️ **The method ships in update `imopenlines 26.700.0` and is not yet available on all Bitrix24 portals.** If the update has not reached your portal yet, the API returns `422 METHOD_NOT_YET_AVAILABLE` — this means the method has not been released on the portal yet, not that the integration is broken.

`POST /v1/openlines/sessions/transfers`

A chronological list of reassignments (transfers) for specific sessions — from whom to whom, between which lines, for what reason. Up to 50 identifiers per call.

## Request fields (body)

| Field | Type | Req. | Description |
|------|-----|:-----:|---------|
| `sessionId` | number[] | yes | Array of session identifiers, up to 50 elements. Source: [`POST /v1/openlines/sessions/search`](/docs/openlines/sessions). A single number is also accepted and wrapped into an array |

Duplicates in `sessionId` are collapsed. A nonexistent, foreign, or inaccessible `sessionId` does not cause an error — there simply will be no records in `transfers` for it.

## Examples

### curl — personal key

```bash
curl -X POST "https://vibecode.bitrix24.com/v1/openlines/sessions/transfers" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "sessionId": [1024, 1025] }'
```

### curl — OAuth application

```bash
curl -X POST "https://vibecode.bitrix24.com/v1/openlines/sessions/transfers" \
  -H "X-Api-Key: YOUR_APP_KEY" \
  -H "Authorization: Bearer USER_SESSION_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "sessionId": [1024, 1025] }'
```

### JavaScript — personal key

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/openlines/sessions/transfers', {
  method: 'POST',
  headers: {
    'X-Api-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ sessionId: [1024, 1025] }),
})
const { data } = await res.json()
```

### JavaScript — OAuth application

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/openlines/sessions/transfers', {
  method: 'POST',
  headers: {
    'X-Api-Key': 'YOUR_APP_KEY',
    'Authorization': 'Bearer USER_SESSION_TOKEN',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ sessionId: [1024, 1025] }),
})
const { data } = await res.json()
```

## Response fields

The response is `{ "success": true, "data": { "transfers": [...] } }`. Transfers of all requested sessions are interleaved, in chronological order (by `date` ascending). To group by session, use the `transfers[].sessionId` field.

| Key | Description |
|---|---|
| `sessionId` | Session identifier |
| `date` | Date and time of the reassignment |
| `fromOperatorId` | Operator the session left (`null` if from the queue) |
| `toOperatorId` | Operator the session went to (`null` if to the queue) |
| `fromConfigId` | Source line |
| `toConfigId` | Target line (if transferred to another line) |
| `reason` | Reason: `manual` / `auto` |
| `mode` | Mode: `MANUAL` / `AUTO` |
| `type` | Type: `USER` / `QUEUE` |
| `initiatorId` | Transfer initiator (`null` if automatic) |

## Response example

Session 1024 — auto-distributed from the queue, then manually transferred to an operator; session 1025 — no transfers:

```json
{
  "success": true,
  "data": {
    "transfers": [
      { "sessionId": 1024, "date": "2026-06-15T14:30:05+00:00", "fromOperatorId": null, "toOperatorId": 42, "fromConfigId": 3, "toConfigId": null, "reason": "auto", "mode": "AUTO", "type": "USER", "initiatorId": null },
      { "sessionId": 1024, "date": "2026-06-15T14:40:00+00:00", "fromOperatorId": 42, "toOperatorId": 51, "fromConfigId": 3, "toConfigId": null, "reason": "manual", "mode": "MANUAL", "type": "USER", "initiatorId": 42 }
    ]
  }
}
```

## Error response example

`400` — more than 50 identifiers in the batch:

```json
{
  "success": false,
  "error": { "code": "BATCH_LIMIT_EXCEEDED", "message": "sessionId batch must not exceed 50 unique ids" }
}
```

## Errors

| HTTP | Code | When |
|---|---|---|
| 403 | `B24_TARIFF_RESTRICTION` | The tariff does not include Open Channels statistics (`report_open_lines`) |
| 400 | `MISSING_PARAMS` | `sessionId` is an empty array or missing |
| 400 | `INVALID_PARAMS` | A non-numeric element in `sessionId` |
| 400 | `BATCH_LIMIT_EXCEEDED` | More than 50 unique identifiers (after collapsing duplicates) |
| 422 | `METHOD_NOT_YET_AVAILABLE` | The `imopenlines 26.700.0` update has not reached the portal yet |

The full list of system codes — [API errors](/docs/errors).

## See also

- [Per-session metrics](/docs/openlines/sessions/stats)
- [Session list](/docs/openlines/sessions)
- [Open Channels statistics](/docs/openlines)