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The composer is where you write a post, pick channels, attach media, and schedule it.

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Writing a post

  1. Pick the channels to publish to (the circular icons at the top).
  2. Write your post. The character counter and per-platform checks update live — e.g. X’s 280-character limit, or that TikTok needs media.
  3. Attach media or generate an image.
  4. Schedule a time, or leave it empty to save a draft.

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Threads and comments

Use Add comment / post to add more posts. On thread-capable platforms (X, Bluesky, Mastodon) these publish as a thread. On others (like LinkedIn) the extra parts publish as a first comment.
Drag the grip handle on any post to reorder it. The thread connectors show how the posts chain together.

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Scheduling

Open Schedule a time to pick a date and time. Postbase publishes in your workspace timezone (shown in the picker). Leave it empty to save as a draft. You can also set a repeat cadence so a post re-publishes on a fixed schedule until you delete it.

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Load a draft

Use Load draft to pull an existing draft back into the composer — handy for picking up where you left off.

Track scheduled posts

Everything you schedule shows on the calendar and queue.