Auto-Generate TikTok / Reels / Shorts from Shopify Products

New Shopify product → Gemini reads image and builds Veo prompt → Veo 3.1 renders 8s 9:16 video → PostWire publishes to multiple platforms → Sheets logging + Gmail alerts

Who

E-commerce teams running Shopify stores who want auto-generated short-form videos for every new product

You get

Automatically produce and publish an 8-second 9:16 product video to TikTok, Instagram Reels, and YouTube Shorts when a product is added

You need

n8n · google-gemini · google-sheets · gmail

Steps

1. Configure trigger and filters

   After importing the template into n8n, configure the Shopify Trigger: select the products/create event and enter your Shopify access token. Then configure the Store settings node: set store_url, notification email, and visual style. The Active with a photo filter checks that the product status is active and an image exists; the Skip products already filmed deduplication node ensures each product is processed only once.

2. Gemini image analysis and Veo video generation

   The Look at the product photo node sends the product image URL, title, description (HTML stripped, truncated to 600 chars), and visual style to Gemini, requesting a JSON response with veo_prompt and selling_point. The Build the brief node parses that JSON and assembles the product name, price, and product URL. Then the Veo 3.1 render node uses the parsed veo_prompt to generate an 8-second 9:16 vertical video.

   Execution prompt · Source text。Look at the product photo node text parameter (n8n expression)

   Copy prompt

   ={{ 'This is the photo of a product that was just added to an online store.\nName: ' + $('New product in Shopify').item.json.title + '\nDescription: ' + String($('New product in Shopify').item.json.body_html || '').replace(/<[^>]+>/g, ' ').replace(/\s+/g, ' ').slice(0, 600) + '\nVisual style: ' + $('Store settings').item.json.style + '\n\nReturn only JSON with two keys. veo_prompt: one paragraph for an 8-second vertical product video made with Veo: describe the product exactly as it looks in the photo (shape, colour, material), where it sits, one simple action or camera move, the light and the ambient sound; no on-screen text, no logos, no people. selling_point: one sentence a shopper would care about, using only facts from the name, the description and the photo.' }}

3. Multi-platform publishing

   The Post to TikTok, Reels and Shorts node (PostWire) receives the binary video data from Veo, uses smart mode to generate platform-specific captions, and publishes. The idempotencyKey prevents duplicate posts for the same product.

   Execution prompt · Source text。Post to TikTok, Reels and Shorts node prompt parameter (n8n expression)

   Copy prompt

   ={{ (() => { const b = $('Build the brief').item.json; return 'New in the shop: ' + b.product + '. ' + (b.plan.selling_point || '') + (b.price ? ' Price: ' + b.price + '.' : '') + ' ' + b.product_url; })() }}

4. Success logging

   The Published? node checks the ok field from PostWire. If true, the Log the video node appends a row to Google Sheets with date, product, network, status=published, link, and note.

5. Failure logging and email alert

   If PostWire returns a failure, the Log the failure node records the failed status and error details to Sheets. The Collect the failures node aggregates all failures, and the Email me the fix node sends a consolidated email via Gmail to the address configured in Store settings, including product name, URL, per-platform errors, and hints.

You are assisting with reproducing an n8n workflow that auto-generates short videos from new Shopify products and distributes them to TikTok, Instagram Reels, and YouTube Shorts. First confirm the user has: Shopify Admin API access token, Google Gemini API key with Veo 3.1 billing enabled, PostWire API key, Google Sheets document (six columns: date/product/network/status/link/note), and Gmail account. Then guide them to import the workflow JSON into n8n, configure credentials per node, and update store_url, email, and style in Store settings.