> ## 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.

# Replace Channel Sites

> Replaces ALL sites and apps in a DV360 channel with a new set (or clears the channel)

Replaces ALL sites and apps in a DV360 channel with a new set (or clears the channel). Prefer dv360\_edit\_channel\_sites for incremental changes. This method can be slow on large channels.

| | |
| - | - |
| **App** | DV360 |
| **Operation ID** | `dv360_replace_channel_sites` |
| **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 the DV360 advertiser that owns the channel. |
| `channel_id` | string or SelectItem | Yes | - | ID of the channel whose sites to replace. |
| `sites` | string or array of string | No | - | The complete new set of site URLs or app IDs, as a list or newline-separated text; all existing sites are replaced with exactly this set. Required unless clear\_all is true. |
| `clear_all` | boolean | No | `False` | When true, remove every site from the channel (replaces with an empty set). sites must be left empty. |

### SelectItem

| Field | Type | Required | Default | Description |
| - | - | - | - | - |
| `value` | string | Yes | - | The value of the selectable item. |
| `label` | string | Yes | - | The label of the selectable item, used for display purposes. If not provided, defaults to the value. |

## Output

**Type**: `Dict`

Returns the final site set now in the channel.

**Fields**: `channel_id`, `site_count`, `sites`


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