外流：如何创建外流活动

外流广告是一种新颖、无缝的视频广告播放方式。外流广告不是将视频放在特定的视频播放器中，而是在用户浏览网站时播放，一旦广告区域出现在视窗上，广告就会展开。如果用户继续滚动，视频广告就会隐藏，但一旦用户向上滚动，它又会在用户离开的位置继续播放。

Outstream offers several advantages to the standard banner format. In this tutorial, we will explain how to create an Outstream ad.

如何创建外流活动

在广告系列设置的第 1 步，选择视频作为广告格式。外流是区类型，这意味着所有视频广告系列默认都将以外流为目标。

如果您想***专门针对外流，则需要在 "区域类型 "部分取消选择其他推送格式：

Outstream videos are always played horizontally, so make sure that your video is on landscape or square mode. The creative requirements for Outstream are the same as for any other Video format: you can learn more about video ads spec requirements in the ad format page from this documentation.

外流广告系列可以采用 CPC、CPM 和 CPV，这是视频格式独有的付费模式。CPV 代表每次观看成本，这意味着您将为广告格式产生的每次观看付费(视频广告播放 **10 秒后产生一次观看)。请注意，观看次数只考虑实际视频播放的秒数：当外流广告被隐藏时，这些秒数不计入观看次数。

The rest of the settings are chosen similarly to what you would do with any other campaign. You can find a detailed explanation of each of our targeting settings in the main advertiser section from this documentation

最佳做法

You can find a detailed guide on how to make the most out of Outstream in our blog.

In addition, please find here our Ultimate Guide for Video Advertising, which can help you scale up your profit in all your Video campaigns.