Multi-Channel Social Media Engagement Manager

Design a fully automated workflow for managing multi-channel social media engagement and replies using n8n. The workflow must work across platforms (Facebook, Instagram, Twitter/X, YouTube, others) and be event-driven (using polling and/or webhooks). Requirements: Trigger: The workflow should be triggered either by polling for new comments/messages, or receiving webhooks from the connected social media platforms. Credentials Management: Each user/client should authenticate once via OAuth and have their access/refresh tokens securely stored in MongoDB. Workflow nodes must dynamically load tokens from DB based on UserID/clientID at runtime. Data Fetch: Upon trigger, retrieve new comments, direct messages, and relevant engagement data from the platform using official n8n nodes (or the HTTP node if native actions are missing, e.g., YouTube comments). AI Reply Generation: For each received comment or message, send its contents to an AI service (e.g., Gemini, OpenAI, Hugging Face) via API/node. Generate a smart, context-sensitive reply. Filter for spam or prohibited content before replying. Post Reply/Engagement: Automatically send the generated reply back to the original social media platform as a comment/direct message using the relevant node/action. Logging & Storage: Every engagement (incoming/outgoing) is logged to MongoDB, including platform, user, message details, AI result, timestamps, and workflow execution status. Error Handling: Integrate error handling nodes: log failures, retry if possible, and optionally alert admins or users to authentication/token problems or API issues. Notifications: Optionally, send notifications to users/admins for important workflow events, e.g., failed replies, need for manual intervention, or engagement summary. Scalability: Design for stateless execution and multi-tenant SaaS use-case—support high concurrency and dynamic credential injection for every user/client. Optional Extensions: Support multiple social platforms with modular nodes/actions per channel. Allow full customization of AI reply templates and filtering logic. Integrate scheduling for delayed replies or time-based engagement. Provide a dashboard/reporting endpoint for the client to view engagement stats and logs. Goal: Deliver a scalable, robust, and fully automated social media engagement workflow in n8n that allows any SaaS client to automate replies and manage engagement across all integrated channels with minimum manual input, using dynamic credentials and AI-powered generation.

English: Design a fully automated workflow for managing multi-channel social media engagement and replies across Facebook, Instagram, Twitter/X, and YouTube with OAuth and AI responses.