Store attributes of the transaction.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/common/offline_user_data.proto)

| Fields ||
|---|---|
| ## `store_code` | `string` Store code from <https://support.google.com/business/answer/3370250#storecode> |