Publishing to YouTube
Uploads, Shorts, thumbnails, and per-video settings.
A YouTube post is one video. The post title becomes the video title, the body becomes the description, and tags go into YouTube's native tag field.
Limits
| Limit | Value |
|---|---|
| Video | One per post: MP4, MOV, AVI, or WebM, up to 256 GB or 12 hours |
| Title | 100 characters |
| Description | 5,000, counted in bytes, so emoji cost several |
| Images | Only as the thumbnail |
Per-video settings
- Privacy: public (default), unlisted, or private
- Category
- Made for kids declaration
- Notify subscribers: on by default
- Shorts mode: appends
#Shortsto the title; the actual classification is YouTube's own, from duration (up to 3 minutes) plus a square or vertical aspect ratio. There is no API switch: that is YouTube's rule
Thumbnails
Attach an image (or set one per post) and it becomes the video's custom thumbnail after upload. YouTube's conditions apply and come back as a warning rather than failing the post: JPEG or PNG, under YouTube's 2 MB thumbnail limit, and the channel must be verified in YouTube Studio.
Deleting
Deleting the post in FoPost deletes the video from the channel. This cannot be undone.
Next
Related documentation
- YouTube
Video and Shorts uploads, with channel analytics and viewer demographics.
- YouTube Analytics
Video metrics, channel metrics, viewer demographics, and competitor channels.
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