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

# Get advertiser

> Fetch the full advertiser resource

`GET /api/v2/buyer/advertisers/{advertiserId}`

Returns a single advertiser with full brand details — including the resolved ADCP manifest — plus linked accounts, UTM config, and frequency caps.

## Request

```bash curl theme={null}
curl https://api.interchange.io/api/v2/buyer/advertisers/12345 \
  -H "Authorization: Bearer $SCOPE3_API_KEY"
```

## Parameters

| Field          | Type          | Required | Notes                                |
| -------------- | ------------- | -------- | ------------------------------------ |
| `advertiserId` | string (path) | Yes      | Unique identifier for the advertiser |

## Response

```json theme={null}
{
  "id": "12345",
  "name": "Acme Corp",
  "description": "Global advertising account for Acme Corporation",
  "status": "ACTIVE",
  "sandbox": false,
  "brand": "acme.com",
  "primaryCurrency": "USD",
  "optimizationApplyMode": "MANUAL",
  "linkedBrand": {
    "id": "brand_123",
    "name": "Acme Brand",
    "domain": "acme.com",
    "manifest": { "name": "Acme Corporation", "url": "https://www.acme.com" }
  },
  "frequencyCaps": [
    {
      "id": "fc_1",
      "max_impressions": 3,
      "window": { "interval": 7, "unit": "days" },
      "targetLevel": "ADVERTISER",
      "targetId": "12345",
      "createdAt": "2025-01-15T10:30:00Z",
      "updatedAt": "2025-01-15T10:30:00Z"
    }
  ],
  "createdAt": "2025-01-15T10:30:00Z",
  "updatedAt": "2025-01-20T14:45:00Z"
}
```

The single-advertiser endpoint always returns the resolved `linkedBrand` (with the full ADCP `manifest`). `linkedAccounts`, `utmConfig`, and `frequencyCaps` appear when configured. A `brandWarning` is present when the brand reference could not be resolved.

## Errors

* `404 NOT_FOUND` — `advertiserId` does not exist or is not visible to the authenticated account.

See [Errors](/v2/reference/errors) for the full error contract.

## Related

<CardGroup cols={2}>
  <Card title="Advertiser tasks" href="/v2/buyer/advertisers/tasks" icon="list-check">
    All advertiser operations
  </Card>

  <Card title="Advertiser overview" href="/v2/object-guides/advertiser" icon="user-tie">
    Fields, lifecycle, and concepts
  </Card>

  <Card title="List advertisers" href="/v2/buyer/advertisers/tasks/list-advertisers" icon="list">
    Page through summary rows
  </Card>

  <Card title="Update advertiser" href="/v2/buyer/advertisers/tasks/update-advertiser" icon="pen">
    Change name, brand, or defaults
  </Card>
</CardGroup>