First, the good news: there is no special "Shorts upload". A Short is just a regular YouTube video that is vertical (9:16) and up to 3 minutes long — YouTube classifies it as a Short automatically. That means any tool that can upload videos on a schedule can schedule Shorts, and the same vertical clip you post to Instagram Reels and TikTok qualifies as-is.
Why schedule Shorts at all
- Consistency beats bursts. The Shorts feed feeds on regular uploads; a daily queue outperforms five videos dumped on Sunday.
- Your audience has peak hours — usually evenings in their timezone — which rarely match when you're free to click Publish.
- Batching is cheaper. Record five Shorts in one sitting, queue the week, move on with your life.
Setting it up, step by step
- Connect YouTube in SOSPosting's Integrations. It's a standard Google sign-in (OAuth) for the account that owns your channel — no API keys to copy.
- Upload a vertical video in the composer, or send it to the SOSPosting Telegram bot.
- Let the AI write the metadata. Unlike TikTok, YouTube is a search engine: the title (up to 100 characters) and description decide whether the Short surfaces later. The AI writes a searchable title, a description and up to 15 tags in your brand voice — edit anything before it goes out.
- Pick the date and time — anything up to 60 days ahead.
- Done. At the scheduled minute, SOSPosting uploads the video through the official YouTube API and publishes it as public. You get the watch link back in your posts list.
Honest trade-offs to know
- The video publishes at the scheduled minute — there's no draft in YouTube Studio beforehand. SOSPosting holds the video and uploads it at publish time, rather than pre-uploading it private. If you change your mind, cancel the scheduled post in SOSPosting before the time hits.
- Titles are sanitised. YouTube rejects angle brackets in titles and hard-caps them at 100 characters — long AI titles get trimmed automatically.
- Your channel must be in good standing. API uploads follow the same rules as manual ones; a channel with upload restrictions can't be scheduled around.
- Shorts don't monetise like long-form — schedule them for reach and subscribers, not RPM.
The real win: the same Short, everywhere
A vertical clip that works as a Short also works as an Instagram Reel, a TikTok and a Facebook video. With SOSPosting, the same scheduled publish can target all of them at once, each with its own AI-written caption — see how to post to Instagram and TikTok at the same time for that side of the flow, or the YouTube integration guide for connection details. One recording session, a fortnight of daily content on three platforms.