X (Twitter)
X (Twitter) scheduler
X has the tightest caption limit of the nine networks here, which makes it the one where a shared caption most often needs its own version. The composer treats that as normal rather than as an error.
What X (Twitter) accepts
Checked before anything is sent, not after it fails.
Post
Poll
- You can post
- Text, Image, Carousel, Video, Mixed media
- Caption
- 280 characters
- Images per post
- 4
- Video up to
- 2 min
What you can send
- Text, images, video or a mix, with the image count capped lower than most networks here.
- A per-network caption, so the version that fits X does not force the same brevity on everything else.
- A mixed post is reduced to its video, matching what the network itself does with one.
The X-only fields
- Reply controls, from everyone down to mentioned users only, set on the post before it goes out.
- Posting into a Community, by its ID from the community URL.
- Quoting an existing post by pasting its URL, rather than by hunting for an internal ID.
What it does not do on X (Twitter)
- No analytics here. Impressions and engagement live in the account's own dashboard.
- Threads of several posts are not supported. One scheduled post is one post.
- Polls are not available on this network through the publishing API.