{"product_id":"automate-instagram-tiktok-linkedin-carousels-with-openai","title":"Automate Instagram, TikTok \u0026 LinkedIn Carousels with OpenAI","description":"\u003ch3\u003eGenerate, publish, and log multi-platform carousel posts from one form submission—automatically\u003c\/h3\u003e\n\u003cp\u003eThis n8n workflow automates the full process of creating Instagram, TikTok, and LinkedIn carousel posts: it collects a topic via an n8n form, uses OpenAI to plan slide text and generate images, uploads everything to PostWire, publishes as a multi-image post on selected networks, and then records results to Google Sheets (with email alerts on failures).\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReceives a submission\u003c\/strong\u003e from an n8n form with: carousel topic, target audience, number of slides, and which networks to publish to.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlans the carousel with OpenAI\u003c\/strong\u003e (gpt-5-mini) by generating a JSON structure including per-slide headlines, image prompts, alt text, and platform-specific captions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenerates slide images\u003c\/strong\u003e using OpenAI GPT Image (gpt-image-1-mini) and requests an \u003cem\u003eupload URL\u003c\/em\u003e from \u003cstrong\u003ePostWire\u003c\/strong\u003e for each slide.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUploads and finalizes media\u003c\/strong\u003e on PostWire, then aggregates hosted media URLs in the original slide order.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePublishes as a multi-image post\u003c\/strong\u003e to Instagram, TikTok, and\/or LinkedIn via PostWire using an \u003cstrong\u003eidempotency key\u003c\/strong\u003e based on the form submission.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLogs outcomes to Google Sheets\u003c\/strong\u003e: if all platforms succeed, it appends a “posted” record with slide headlines and post links.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandles failures automatically\u003c\/strong\u003e: if any platform fails, it logs error details to Google Sheets and sends a \u003cstrong\u003eGmail\u003c\/strong\u003e message with platform-specific fixes and any successfully published links.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSaaS operators who want weekly thought-leadership carousels across Instagram, TikTok, and LinkedIn without manual resizing\/copying.\u003c\/li\u003e\n  \u003cli\u003eAutomation engineers building a reliable content pipeline with PostWire, OpenAI image generation, and audit logging.\u003c\/li\u003e\n  \u003cli\u003eTeams testing carousel performance while keeping messaging consistent across platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpenAI\u003c\/strong\u003e: gpt-5-mini (JSON slide plan), gpt-image-1-mini (square slide images)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePostWire\u003c\/strong\u003e: HTTP header auth (\u003ccode\u003eAuthorization: Bearer \u0026lt;your PostWire API key\u0026gt;\u003c\/code\u003e), upload URL + publish to selected platforms with idempotency\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGoogle Sheets\u003c\/strong\u003e: success (“posted”) and failure logging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGmail\u003c\/strong\u003e: email notifications for failed platform publishes\u003c\/li\u003e\n  \u003cli\u003eWorkflow nodes referenced: if, set, gmail, split out, aggregate, sticky note\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":46157945405619,"sku":"N8N-20323","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/hSg6rJUWOPOIKGfe6dqOe_MwXqIA9X.png?v=1791019299","url":"https:\/\/buyflowscripts.com\/products\/automate-instagram-tiktok-linkedin-carousels-with-openai","provider":"N8N Commerce","version":"1.0","type":"link"}