An asset representing a mobile app.

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

| Fields ||
|---|---|
| ## `app_id` | `string` Required. A string that uniquely identifies a mobile application. It should just contain the platform native id, like "com.android.ebay" for Android or "12345689" for iOS. |
| ## `app_store` | `https://developers.google.com/google-ads/api/reference/rpc/v26/MobileAppVendorEnum.MobileAppVendor` Required. The application store that distributes this specific app. |
| ## `end_date` | `string` Last date of when this asset is effective and still serving, in yyyy-MM-dd format. |
| ## `link_text` | `string` Required. The visible text displayed when the link is rendered in an ad. The length of this string should be between 1 and 25, inclusive. |
| ## `start_date` | `string` Start date of when this asset is effective and can begin serving, in yyyy-MM-dd format. |