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A workflow missed a new post

Check these in order:
  1. It hasn’t been checked yet. PostOnce checks sources every 5 to 25 minutes depending on the platform (see How fast posts publish). Open the workflow and click Check now.
  2. The workflow is off. In Workflows, make sure the switch is on and Publish automatically is on inside the workflow.
  3. A filter excluded it. Check the keyword filters and content types under Settings › Source. Instagram Stories and Trial Reels, Facebook Stories and regular YouTube videos are off unless you turn them on. A Trial Reel you later share to your feed is still a Trial Reel to PostOnce.
  4. The post was skipped. Open the workflow and filter by Skipped. The reason is shown on the post. See Filters and duplicates.
  5. The source account needs reconnecting, or the post or account is private. Reconnect, or make the post public.
  6. The post is older than the workflow. New-post copying starts when the workflow is created. To copy older posts, use Repost existing posts or Run full sync.
  7. Publishing is paused because the trial ended or a payment failed. See Publishing is paused.

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A post is late

  • The destination reached a daily limit (Instagram 50, TikTok 14, X 12 in any 24 hours), so the post is waiting for a free slot.
  • Set time between posts is spreading posts out.
  • The workflow publishes new posts On the schedule instead of Immediately.
  • The video is long and still processing, or the source platform hasn’t finished processing it.
  • The first attempt failed and PostOnce is retrying 15 minutes later.
Open Posts › Scheduled to see when queued posts will go out.

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A post appeared twice

  • Another tool is still posting. If you used another cross-posting tool before, turn off its automation for the accounts PostOnce handles.
  • Two workflows post to the same account. Delete one, or remove the shared destination from one of them.
  • The same video was posted twice on the source. Turn on Skip duplicate videos under Settings › Source.
  • You clicked Retry on a post that had actually published. PostOnce doesn’t retry by itself when it can’t tell whether a post went out, but a manual retry posts again. Check the platform before clicking Retry when the message says the status was unknown.

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You’re not told when posts fail

Turn on Failed posts under Settings › Email notifications to get an email whenever a platform rejects a post. PostOnce always emails you when an account needs reconnecting.

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Still stuck?

Search this help center with ⌘ K, or email support@postonce.to from the address you use for PostOnce. Include the platform, the approximate time, and the exact message you saw. Never send passwords, access tokens, API keys, or card details. Something missing from PostOnce? Request a feature or check the roadmap.
Last modified on October 7, 2026