T-02 · Creators · Mobile parity still being validated for some formats · Last reviewed 20 Aug 2026
Publish image, video, audio, or link posts
Each media type has its own cover, crop, and playback behavior. Review the preview before you publish.
Image posts
You can add up to four images. After upload or publication, drag to reorder images or choose a different cover. The first image becomes the cover when the order changes. Each image keeps its focal point.
Video posts
Add one primary video. VAST can use the first frame as the initial thumbnail, or you can select or upload a better thumbnail.
Audio posts
Add one primary audio file and a custom cover image. Review the cover and playback controls in the post preview. A short discovery preview, where available, must not replace or alter the original audio asset.
Link posts
Add one URL. VAST may retrieve a title, image, and metadata. If the preview is incorrect or unavailable, add a custom cover image and review the fallback before publishing. YouTube media should begin after the viewer deliberately opens it.
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