Automate LinkedIn Content Creation with OpenAI, Google Sheets & API

This n8n workflow creates a hands-off LinkedIn content engine. It uses a scheduled trigger to fetch the first unpublished topic from a Google Sheet, generates SEO-optimized post text with OpenAI, creates a custom marketing image (e.g., via DALL-E), combines them, posts directly to your LinkedIn profile using the official API, and marks the topic as 'Published' in the sheet.

Ideal for marketers, coaches, and professionals in Health & Fitness or any niche needing consistent social presence. Run it daily to post fresh, engaging content without brainstorming or designing—saving hours weekly while boosting visibility and engagement on LinkedIn.

Key benefits include scalability (handle dozens of topics queued in Sheets), customization (tweak OpenAI prompts for your voice), and reliability (OAuth2 integrations ensure secure, production-ready automation). Use cases: Fitness trainers sharing workout tips, nutritionists posting recipes, or agencies managing client calendars.

Setup is straightforward: Import workflow, add your Google Sheet with 'Topics' and 'Status' columns, configure OpenAI/Sheets/LinkedIn credentials in n8n, test with a sample topic, and schedule. Customize frequency, prompts, or add error handling for pro use.