## Update field

`PATCH /v1/items/:entityTypeId/userfields/:id`

Updates the properties of an existing smart process user field. The field type (`userTypeId`) cannot be changed — to change the type, delete the field and create a new one. Pass only the fields you want to change.

## Parameters

| Parameter | Type | Required | Description |
|----------|-----|:-----:|---------|
| `:entityTypeId` (path) | number | yes | Smart process type identifier. Source: [`GET /v1/smart-processes`](/docs/entities/smart-processes) — the `entityTypeId` field on each element of the `data` array |
| `:id` (path) | number | yes | Numeric field identifier (from the response of [`GET /v1/items/:entityTypeId/userfields`](/docs/userfields/smart-processes/list) or [`POST /v1/items/:entityTypeId/userfields`](/docs/userfields/smart-processes/create)) |

## Request fields (body)

The fields are the same as on creation. Pass only the ones you want to change.

| Field | Type | Description |
|------|-----|---------|
| `label` | string | Field label for display. If explicit `editFormLabel` / `listColumnLabel` are not set, the value is copied into both labels — the edit form (`editFormLabel`) and the list column header (`listColumnLabel`) |
| `editFormLabel` | object | Edit form label by language. Example: `{ "en": "Project", "de": "Projekt" }` |
| `sort` | string | Sort order in the Bitrix24 interface |
| `multiple` | string | Allow multiple values: `"Y"` or `"N"` |
| `mandatory` | string | Required on input: `"Y"` or `"N"` |
| `showFilter` | string | Show in filter: `"N"` — no, `"I"` — exact value, `"E"` — mask, `"S"` — range |
| `showInList` | string | Show in the record list: `"Y"` or `"N"` |
| `editInList` | string | Allow editing directly from the list: `"Y"` or `"N"` |
| `isSearchable` | string | Participates in full-text search: `"Y"` or `"N"` |
| `xmlId` | string | External identifier for integrations |
| `settings` | object | Field settings specific to the type. The structure depends on `userTypeId` |
| `enum` | array | Options for an `enumeration` field. Pass all options that should remain, with their `id`, plus new ones without `id`. An element without `id` is created anew; an element with `id` that is not passed in the array is deleted |

Read-only fields (`id`, `entityId`, `fieldName`, `userTypeId`) are ignored when passed.

## Examples

### curl — personal key

```bash
curl -X PATCH "https://vibecode.bitrix24.com/v1/items/174/userfields/8210" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "mandatory": "Y",
    "showFilter": "I"
  }'
```

### curl — OAuth application

```bash
curl -X PATCH "https://vibecode.bitrix24.com/v1/items/174/userfields/8210" \
  -H "X-Api-Key: YOUR_APP_KEY" \
  -H "Authorization: Bearer USER_SESSION_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "mandatory": "Y",
    "showFilter": "I"
  }'
```

### JavaScript — personal key

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/items/174/userfields/8210', {
  method: 'PATCH',
  headers: {
    'X-Api-Key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    mandatory: 'Y',
    showFilter: 'I',
  }),
})

const { success, data } = await res.json()
console.log('Updated:', data.updated)
```

### JavaScript — OAuth application

```javascript
const res = await fetch('https://vibecode.bitrix24.com/v1/items/174/userfields/8210', {
  method: 'PATCH',
  headers: {
    'X-Api-Key': 'YOUR_APP_KEY',
    'Authorization': 'Bearer USER_SESSION_TOKEN',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    mandatory: 'Y',
    showFilter: 'I',
  }),
})

const { success, data } = await res.json()
```

## Response fields

| Field | Type | Description |
|------|-----|---------|
| `success` | boolean | Always `true` on success |
| `data.updated` | boolean | `true` on a successful update |

## Response example

```json
{
  "success": true,
  "data": {
    "updated": true
  }
}
```

## Error response example

403 — the key has no `userfieldconfig` scope:

```json
{
  "success": false,
  "error": {
    "code": "BITRIX_ACCESS_DENIED",
    "message": "The request requires higher privileges than provided by the webhook token"
  }
}
```

## Errors

| HTTP | Code | Description |
|------|-----|---------|
| 400 | `INVALID_REQUEST` | The request body is not an object |
| 400 | `INVALID_ENTITY_TYPE_ID` | `:entityTypeId` is not a positive integer |
| 403 | `BITRIX_ACCESS_DENIED` | The key has no `userfieldconfig` scope — reissue the key with this scope |
| 403 | `SCOPE_DENIED` | The API key has no `crm` scope |
| 404 | `SMART_PROCESS_NOT_FOUND` | A smart process with the given `entityTypeId` was not found on the portal |
| 422 | `BITRIX_ERROR` | The field with the given `id` does not exist — Bitrix24 responds "You cannot change the user field settings" |
| 422 | `BITRIX_ERROR` | Invalid field values or incompatible `settings` |
| 401 | `TOKEN_MISSING` | The API key has no configured tokens |
| 401 | `MISSING_API_KEY` | The `X-Api-Key` header is missing |

Full list of common API errors — [Errors](/docs/errors).

## Known specifics

**Updating `enumeration` options.** Options are passed as the `enum` array (not `list`). To keep an existing option, pass it with the `id` field from the response of [`GET /v1/items/:entityTypeId/userfields/:id`](/docs/userfields/smart-processes/get) — an option without `id` is created as new, and one omitted from the array is deleted.

## See also

- [Get field](/docs/userfields/smart-processes/get) — verify the update result
- [Create field](/docs/userfields/smart-processes/create) — add a new field
- [Delete field](/docs/userfields/smart-processes/delete) — delete a field
- [Smart process fields](/docs/userfields/smart-processes) — section overview
- [User fields](/docs/userfields) — section overview