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

# Update Line Item Budget

> Updates budget allocation type and amount for DV360 line items

Updates budget allocation type and amount for DV360 line items

| | |
| - | - |
| **App** | DV360 |
| **Operation ID** | `dv360_update_line_item_budget` |
| **Type** | Action |
| **Connection** | `dv360` (required) |
| **Credits per run** | 1 |
| **Agent / MCP tool** | Yes |
| **Requires approval** | Yes (write operation) |

## Inputs

| Field | Type | Required | Default | Description |
| - | - | - | - | - |
| `account` | DynamicAccount | Yes | - | Select DV360 advertiser account |
| `update_type` | string or SelectableOption | Yes | - | Choose whether to update a single line item or multiple at once. Options: 'single' (Single Update), 'bulk' (Bulk Updates) |
| `line_item_id` | string | No | - | The line item ID to update (required for single update) |
| `budget_allocation_type` | string or SelectableOption | No | - | Budget allocation type. Options: 'AUTOMATIC' (inherit from IO), 'FIXED' (fixed max budget), 'UNLIMITED' (no budget limit). Required for single update. |
| `max_amount` | number | No | - | Max budget amount in standard units (e.g., 5000 for \$5,000). Only applicable when budget\_allocation\_type is FIXED. |
| `structured_data` | array (also accepts a comma-separated string) | No | - | Structured data for bulk updates. Required fields: 'line\_item\_id', 'budget\_allocation\_type' (AUTOMATIC, FIXED, or UNLIMITED). 'max\_amount' is required when budget\_allocation\_type is FIXED. |

### SelectableOption

| Field | Type | Required | Default | Description |
| - | - | - | - | - |
| `value` | string | Yes | - | |
| `label` | string | Yes | - | |

## Output

**Type**: `str`

Returns success message confirming line item budget update.


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