2. Copy the Channel Assembly Playback URL, for example, http://xxx.com/channel_assembly/673B2656XXXX86DD3A96/hls.m3u8.
2.1 Then enter http://xxx.com/channel_assembly/ in the Content source.
2.2 Enter the VAST URL provided by your ad service provider in the Ad decision server.
2.3 Enter the HTTP URL of an accessible video file in the Slate ad field, it is recommended to use the MP4 container format.
3. Click Confirm.
4. Return to Ad Insertion Configurations. Copy the Playback endpoint prefix, for example, http://xxx.com/v1/ssai/master/01934245exxxxxxxx7043569b359bb/.
Take the suffix part of the Playback URL of the channel assembly, for example, 673B2656XXXX86DD3A96/hls.m3u8 from http://xxx.com/channel_assembly/673B2656XXXX86DD3A96/hls.m3u8, and append it to the Playback endpoint prefix.
Therefore, the playback URL is http://xxx.com/v1/ssai/master/01934245exxxxxxxx7043569b359bb/673B2656XXXX86DD3A96/hls.m3u8.
Copy this URL into the player for playback. This URL is also the source playback URL for the FAST Channel, which will play content according to the channel Program schedule, and provide personalized dynamic ad replacement during the configured ad slots.
