AI-powered blog post promoter for Instagram, Facebook & X with GPT

AI Social Media Promoter – Automated Blog Sharing Workflow This workflow is built for bloggers, creators, and marketing teams who want to automatically promote new blog content across Instagram, Facebook, and X (Twitter). Its core purpose is to detect new blog posts from your RSS feed and instantly create platform-specific social media posts — complete with AI-generated captions and visuals — to drive traffic from social media back to your blog. Everything runs on autopilot: from detecting a new article to posting eye-catching content on each platform, while logging actions to Google Sheets and sending post previews by email. The result is a consistent and professional online presence with z

Help me set up the n8n workflow "AI-powered blog post promoter for Instagram, Facebook & X with GPT" (https://n8n.io/workflows/4033). It uses: Google Sheets, HTTP Request, Facebook Graph API, X (Formerly Twitter), Gmail, Code, AI Agent, OpenAI Chat Model, Structured Output Parser. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.