> ## 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 measurement config

> Read which measurement features are active for an advertiser

`GET /api/v2/buyer/advertisers/{advertiserId}/measurement-config`

Returns the measurement configuration for an advertiser — whether MMM, incrementality testing, and brand lift are enabled, plus any provider-specific MMM settings.

## Request

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

## Parameters

| Field          | Type   | Required | Notes                                  |
| -------------- | ------ | -------- | -------------------------------------- |
| `advertiserId` | string | Yes      | Path parameter — the owning advertiser |

## Response

```json theme={null}
{
  "advertiserId": "12345",
  "mmmEnabled": true,
  "mmmConfig": {
    "provider": "example-mmm",
    "dataSourceIds": ["ds_revenue", "ds_orders"],
    "reportingFrequency": "weekly"
  },
  "incrementalityTestingEnabled": true,
  "brandLiftEnabled": false,
  "settings": { "defaultLookbackDays": 28 },
  "createdAt": "2026-01-15T10:30:00Z",
  "updatedAt": "2026-03-20T14:45:00Z"
}
```

`mmmConfig` is `null` when `mmmEnabled` is `false`. `settings` is `null` when no overrides are configured.

## 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="Measurement tasks" href="/v2/buyer/measurement/tasks" icon="list-check">
    All measurement operations
  </Card>

  <Card title="Measurement overview" href="/v2/guides/measurement-incrementality" icon="chart-line">
    Pipeline, belief state, and concepts
  </Card>

  <Card title="Update measurement config" href="/v2/buyer/measurement/tasks/update-measurement-config" icon="pen">
    Enable features and set MMM options
  </Card>
</CardGroup>