🛍️ Google Shopping Feed Optimization with Channable + Relevance AI + Google Merchant API 🚀 Automate, Optimize & Sync Your Product Feeds at Scale 🧩 Overview This workflow automates Google Shopping Feed Optimization using Channable , Relevance AI , and the Google Merchant API . It runs daily, enhancing product titles and descriptions, validating feed quality, assigning custom campaign labels, and syncing the optimized feed with Google Merchant Center. The system ensures every product listing meets Google’s content standards, is SEO-friendly, and ready for high-performance Shopping campaigns. 🧠 Key Benefits ✅ Automated daily product feed optimization ✅ AI-enhanced titles and descriptions (via Relevance AI) ✅ Google Merchant API integration (latest version) ✅ Quality scoring and error detection before sync ✅ Custom campaign labels for segmented bidding ✅ Slack alerts for issues and daily summaries ✅ 100% no-code deployment with scalable batch processing ⚙️ System Architecture Component Purpose n8n Workflow automation and orchestration Channable Product feed source (can replace with any eCommerce API) Relevance AI AI title and description optimization Google Merchant API (NEW) Product publishing and validation Slack Alerts and reporting Cron Trigger Daily schedule (6 AM sync) 🧭 Workflow Logic (Visual Summary) Daily Trigger (06:00 AM) ⬇️ 1️⃣ Get Product Feed (Channable) Fetches product data for optimization. ⬇️ 2️⃣ Data Quality Checks Validates titles, GTINs, pricing, categories, and descriptions. Assigns quality scores. ⬇️ 3️⃣ Split Products Breaks the all_products array into single items for AI processing. ⬇️ 4️⃣ Optimize Title (Relevance AI Tool) Enhances product titles for SEO, clarity, and Google compliance. ⬇️ 5️⃣ Generate Description (Relevance AI Tool) Creates 300–400 character, benefit-focused product descriptions. ⬇️ 6️⃣ Assign Custom Labels Adds five segmentation labels: margin, performance, seasonality, stock level, and category. ⬇️ 7️⃣ Aggregate Products Combines optimized items into one unified dataset. ⬇️ 8️⃣ Upload to Merchant Center (NEW Merchant API) Publishes products via Google’s latest /products endpoint. ⬇️ 9️⃣ Check Product Status Verifies successful uploads and identifies disapprovals. ⬇️ 🔍 Analyze Product Issues Summarizes errors and warnings from Merchant API results. ⬇️ ⚖️ IF Disapprovals Found → 🚨 Send Slack alert for issues → ✅ Otherwise, post success summary 🧩 Environment Variables Set these under n8n → Settings → Variables → Add Variable Variable Example Purpose CHANNABLE_API_URL https://api.channable.com/v1 Channable API base CHANNABLE_COMPANY_ID 12345 Company ID in Channable CHANNABLE_PROJECT_ID abcd Project ID FEED_ID shopping-feed Feed endpoint RELEVANCE_AI_API_URL https://api-f1db6c.stack.tryrelevance.com/latest Relevance AI API base RELEVANCE_TOOL_TITLE_OPTIMIZER_ID tQy48Ld8n0zp Relevance AI Title Tool ID RELEVANCE_TOOL_DESCRIPTION_ID hJ9bT01r8Lqf Relevance AI Description Tool ID MERCHANT_API_URL https://merchantapi.googleapis.com/content/v2.1 Google Merchant API base MERCHANT_ACCOUNT_ID 123456789 Merchant Center account ID SLACK_CHANNEL #shopping-feed-automation Slack channel for reports 🔑 Credential Setup Service Type Setup Relevance AI HTTP Header Auth Header → Authorization: Bearer {{$env.RELEVANCE_AI_API_KEY}} Channable HTTP Header Auth Header → Authorization: Bearer {{$env.CHANNABLE_API_TOKEN}} Google Merchant Google OAuth2 Scopes:
• https://www.googleapis.com/auth/content Slack Slack API Add chat:write Bot Token Scope 🧱 Node-by-Node Breakdown Node Description Key Action Daily Trigger (6 AM) Starts workflow every morning cron: 0 6 * * * Get Product Feed Fetches products from Channable GET {{$env.CHANNABLE_API_URL}}/.../feeds/{{$env.FEED_ID}} Data Quality Checks Validates GTINs, titles, pricing, images Returns quality_score + all_products Split Products Splits array into individual products Operation: splitOut , Field: all_products Optimize Title Calls Relevance AI title tool /tools/{{$env.RELEVANCE_TOOL_TITLE_OPTIMIZER_ID}}/trigger Generate Description Calls Relevance AI description tool /tools/{{$env.RELEVANCE_TOOL_DESCRIPTION_ID}}/trigger Assign Custom Labels Adds 5 Smart Bidding Labels Margin, performance, seasonality, stock, category Aggregate Products Combines optimized product data For batch upload Upload to Merchant Center Posts via NEW Merchant API /accounts/{id}/products Check Product Status Retrieves upload results Lists disapproved or pending items Analyze Product Issues Summarizes product disapprovals Returns disapproval_count and warnings IF Disapprovals Found Conditional routing Sends alert or success message Slack - Alert Sends error summary to Slack Includes product name and issue detail Slack - Success Summary Posts daily completion message Includes counts and optimizations applied 🧰 Testing Procedure 1️⃣ Temporarily disable the cron schedule 2️⃣ Run manually using “Execute Workflow” 3️⃣ Start with 3–5 products 4️⃣ Check: Slack → Success message Google Merchant → Updated products n8n Execution logs → No failed nodes Once validated → Re-enable the 6 AM trigger 🧾 Example Output Slack Success Message ✅ Shopping Feed Optimization Complete 📊 Summary: • Total Products Processed: 135 • Products with Quality Issues: 12 • Disapprovals: 0 • Warnings: 3 🎯 Optimizations Applied: • Titles optimized for SEO • Descriptions enhanced • Custom labels added API: NEW Merchant API (merchantapi.googleapis.com) Next Run: Tomorrow 6 AM Timestamp: 2025-10-22T06:00:00Z Slack Alert Message 🚨 Merchant Center Disapprovals Alert Total Disapprovals: 5 Total Warnings: 2 Critical Issues: • Product: Wireless Headphones (ID: 4829) Issue: Missing GTIN • Product: Yoga Mat Eco (ID: 7350) Issue: Invalid price Action Required: Review disapproved products in Merchant Center. Timestamp: 2025-10-22T06:00:00Z 📊 Success Metrics Metric Goal Feed approval rate ≥ 90% AI optimization success rate ≥ 95% Manual review reduction 80% Daily automation uptime 99.9% Scalable throughput 5,000+ products/day 🧩 Maintenance Schedule Frequency Task Daily Monitor Slack alerts Weekly Check disapproval logs Monthly Refresh API tokens Quarterly Tune AI prompts and thresholds 🪜 Next Steps ✅ Deploy workflow in production 📈 Connect to your performance dashboard 🌍 Extend to multi-language feeds (Relevance AI translations) 💡 Add conversion optimization loop in Google Ads 🔗 References n8n Documentation Relevance AI Documentation Google Merchant API Docs Channable Help Center 🎉 Conclusion You now have a production-grade, AI-driven Shopping Feed Optimization workflow built on: Channable for structured data ingestion Relevance AI for content intelligence Google Merchant API for publishing n8n as the automation engine 💡 Result: A fully autonomous product feed system that self-improves daily, keeping your listings compliant, optimized, and performing at scale.