# Update Bundle Item

**PUT** `/v1/bundles/:listing_id/items/:item_id`

Updates the quantity or display order of a component in a fixed bundle. Requires admin or bundle owner access.

### Path parameters

| Field | Type | Description |
|---|---|---|
| `listing_id` | integer | ID of the bundle listing |
| `item_id` | integer | ID of the bundle item to update |

### Request fields

| Field | Type | Required | Description |
|---|---|---|---|
| `quantity` | integer | No | New quantity (min 1) |
| `order_by` | integer | No | New display sort order |
| `metadata` | object | No | Updated metadata |