> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/ExternalAttributionData).

Contains additional information about externally attributed conversions.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/services/conversion_upload_service.proto)

| Fields ||
|---|---|
| ## `external_attribution_credit` | `double` Represents the fraction of the conversion that is attributed to the Google Ads click. |
| ## `external_attribution_model` | `string` Specifies the attribution model name. |