X (Twitter)
Post videos and text directly to X (formerly Twitter) from ShortSync, including community posts and reply settings.
Requirements
- Duration: Up to 20 minutes, or 125 minutes with X Premium
- Aspect Ratio: Vertical (9:16 recommended)
- File Size: Up to 8 GB, or 16 GB with X Premium
- Supported Formats: MP4, MOV
- Caption: Up to 280 characters
Available Features
Caption
Write a caption for your post (up to 280 characters). Include hashtags and @mentions directly in the caption text.
Community Posting
Open Advanced settings and search for an X Community to post your video to. When published, your post will appear on both your timeline and in the community's feed. Subscribers only is under Advanced settings too.
Paid partnership
Tick Paid partnership in the X settings when the post is sponsored or promotes a brand you were paid by. X then shows its paid promotion label on the post. It works on video, image and text posts.
If X won't accept the label for your account, the post still goes out, just without it.
Alt text
Image posts take alt text of up to 1,000 characters per image. Write it once in the Alt text card on the Caption step and it goes to every selected platform that supports alt text, or give X its own. If X refuses it, the post goes out without it. See Platform settings.
Polls
On a text post, click Add a poll under the caption, add 2 to 4 options (up to 25 characters each) and choose how long it stays open, from 5 minutes to 7 days. Your caption is the question. The same poll goes to every selected platform that supports polls. X doesn't let you edit a poll after it's posted.
Polls only work on text posts. Posts with an image or video can't have one.
Analytics
X charges for every post read through its API, so X analytics use your own X developer app's Bearer Token, and X bills your developer account directly (about $0.005 per post). Add the key in Settings → Integrations → X analytics. Setup steps and costs are in Analytics.
Common Issues
X token expired
X access tokens expire periodically. If your posts fail to publish, try reconnecting your X account from the platform connections page in your dashboard.
Video duration limits
X accounts without Premium can post videos up to 20 minutes and 8 GB. With X Premium the limit is 125 minutes and 16 GB. If your video is over the limit for your account, ShortSync tells you before it uploads.
Community posting permissions
To post to an X Community, you must be a member of that community. If a community doesn't appear in your list, make sure you've joined it on X first.