> ## 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.

# Add Users To Audience

> Adds users to a Snapchat Customer List audience by email, phone number, or mobile ad ID

Adds users to a Snapchat Customer List audience by email, phone number, or mobile ad ID. Identifiers are normalized and SHA-256 hashed automatically.

| | |
| - | - |
| **App** | Snapchat Ads |
| **Operation ID** | `snapchat_ads_add_users_to_audience` |
| **Type** | Action |
| **Connection** | `snapchat_ads` (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 Snapchat Ads account that owns the audience. |
| `audience_id` | string or SelectItem | Yes | - | Snapchat Customer List audience segment ID. |
| `schema_type` | string or SelectableOption | No | `{'value': 'EMAIL_SHA256', 'label': 'Emails'}` | Identifier type for this batch (one type per run): EMAIL\_SHA256 (default), PHONE\_SHA256, or MOBILE\_AD\_ID\_SHA256. |
| `users` | array of string or string | Yes | - | The identifiers, as a list or comma/newline separated text. Plain values (emails, phone numbers with country code, mobile ad IDs) are normalized per Snapchat's rules and SHA-256 hashed automatically; already-hashed 64-character values are passed through as-is. Up to 100,000 identifiers per request (larger lists are chunked). |

### 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. |

### SelectableOption

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

## Output

**Type**: `Dict`

Returns how many users were submitted and processed.

**Fields**: `audience_id`, `schema_type`, `users_submitted`, `users_processed`


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