Which type of asset is not allowed for an app campaign?

In the context of Google Ads app campaigns, there are specific types of assets that are permissible for use in promoting mobile applications. Among these options, a website is not considered an appropriate asset type for an app campaign.

App campaigns are specifically designed to showcase mobile applications across various Google networks, and therefore the focus is on assets that pertain directly to the app itself. This includes video previews, logos, and app descriptions, which all serve to attract users' attention and communicate the app's value and features directly within the app ecosystem.

A website, on the other hand, is typically not relevant in this context because an app campaign is meant to promote the app directly, rather than directing traffic to an external site. This focus on the app itself helps to streamline the user experience and increase installations directly from the campaign.