> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v24** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/SessionAttributeKeyValuePair).

Contains one session attribute of the conversion.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/services/conversion_upload_service.proto)

| Fields ||
|---|---|
| ## `session_attribute_key` | `string` Required. The name of the session attribute. |
| ## `session_attribute_value` | `string` Required. The value of the session attribute. |