Instagram Reels & Stories
Upload vertical videos to Instagram Reels with custom captions, hashtags, and full control over settings.
Requirements
- Duration: Up to 90 seconds
- Aspect Ratio: Vertical (9:16 recommended)
- File Size: Under 300MB
- Supported Formats: MP4, MOV
- Account Type: Business or Creator account required
Available Features
Caption
Write an engaging caption for your Reel (up to 2,200 characters)
Hashtags
Add relevant hashtags to increase reach. Instagram recommends 3-5 hashtags per post for optimal engagement.

Platform Settings
Share to Feed
Choose whether to also share your Reel to your main Instagram feed
Share to Story
Optionally share your video to Instagram Stories in addition to Reels

Collaborators & Tags
Under Advanced Settings, you can invite collaborators and tag people on your Reel.
Invite Collaborators
Invite up to 3 Instagram users as collaborators on your Reel. They will receive a collaboration invite in their Instagram app and can accept to have the Reel appear on their profile as well.
Tag People
Tag Instagram users on your published Reel. Tagged users will receive a notification in their Instagram app. Note that users with private accounts cannot be tagged.
Type a username and press Enter to add. You can save your frequently used collaborators and tags as defaults in your preferences.

Common Issues
Connection requires a Business or Creator account
Instagram requires a Business or Creator account to use third-party posting tools like ShortSync. If your account is not a Business or Creator account, Instagram will ask you to convert it to one when you try to connect your account to ShortSync.
Tagged user or collaborator has a private account
Users with private Instagram accounts cannot be tagged or invited as collaborators. If a username is invalid or belongs to a private account, ShortSync will automatically skip that user and still publish your Reel with the remaining valid tags and collaborators.