n8n TikTok Reels Shorts AI Video Approval Workflow (Gemini, Veo, Telegram)

Turn TikTok Reels & Shorts ideas into approved, auto-published 9:16 videos—without leaving n8n

This n8n TikTok Reels Shorts AI Video Approval Workflow watches Google Sheets for new video ideas, uses Google Gemini + Veo 3.1 to generate an 8-second vertical (9:16) short, routes it to Telegram for human approval, and then publishes to TikTok, Instagram Reels, and YouTube Shorts via PostWire, logging results back to Google Sheets.

What this workflow does

• Detects new ideas: Triggers when a new row is added to a Google Sheets document.
• Filters only unprocessed requests: Continues only if the row contains an idea and the status is empty.
• Builds prompts + captions: Uses Google Gemini to generate a Veo prompt, platform-specific captions, and a YouTube title/description.
• Generates the video: Requests an upload URL from PostWire, creates an 8-second 9:16 video using Veo 3.1, uploads the file, and finalizes it to obtain a media URL.
• Approval in Telegram: Sends the rendered video and captions to Telegram and waits for Approve or Decline.
• Publishes or flags fixes:
  • If approved, publishes to TikTok, Instagram, and YouTube via PostWire, updates Google Sheets with the published links, and sends required info back to Telegram.
  • If declined, updates the Google Sheets row to declined with a timestamp note.

Use cases

• SaaS teams batch-generate short-form video concepts in Google Sheets and get quick human sign-off in Telegram.
• Marketing operators want consistent TikTok Reels Shorts posting with per-platform captions and logging.
• Automation engineers need an approval-gated AI publishing pipeline using n8n, Gemini, Veo, and PostWire.

Technical details

• Trigger/controls: Google Sheets, if, filter, and set
• AI generation: Google Gemini (prompt + captions + YouTube metadata) and Veo 3.1 (8-second 9:16 creation)
• Approval workflow: Telegram (Approve/Decline) + Sticky Note
• Publishing: PostWire via HTTP Request (upload URL + finalization) using Authorization: Bearer <your PostWire API key>
• Result logging: Writes publish status and links (or declined timestamp) back to Google Sheets