🐛 Part 10: Fixing the Contact-Group Bug + Full App Demo | Email Blast Series Finale

The app was missing one critical piece — you could create contacts and groups, but there was no way to actually connect them. No button. No UI. Nothing. In Part 10, I fix the missing Contact-Group Assignment UI and then do a full end-to-end demo of the complete Email Blast app across all 9 features. In this video you'll see: ✅ The bug: contacts and groups exist but can't be linked from the dashboard ✅ The fix: Groups checkboxes in the Edit Contact modal — assign multiple groups in one save ✅ Members panel on the Groups page — add/remove contacts with a searchable picker ✅ Group badges on every contact row (Family, VIP, Airbnb Guests) ✅ One contact in multiple groups simultaneously — melysibayan in Family + VIP, gets only one email ✅ Full app demo: SMTP setup → contacts → groups → AI-generated campaign → GrapesJS builder → send → open & click analytics What you'll learn: 🔹 How to wire existing backend routes to a UI that was never built 🔹 Why diff-based saves beat wipe-and-reinsert for relationship data 🔹 How to deduplicate recipients when a contact belongs to multiple selected groups 🔹 What a fully self-hosted, AI-powered email marketing tool looks like from end to end This is the final episode of the Email Blast series — 10 parts, 9 features, zero monthly subscription fees. 🎉 👍 Like this video if you made it to Part 10 🔔 Subscribe — next series coming soon 💬 Drop a comment — what feature should I add next, or what app should I build with Claude Cowork? 🔗 Links & Resources Claude Cowork: https://claude.ai 🏡 Check Out My Staycation Business 📘 Facebook:   / 1egfchafbz   🏠 Airbnb: https://www.airbnb.com/rooms/15799619... 🌙 Agoda: https://www.agoda.com/sp/oIaolM7iLdI 📍 Google Maps: https://maps.app.goo.gl/F4y4WZwShiRb8... 📲 Follow Me on Social Media 🔗 LinkedIn:   / rey-sibayan   📘 Facebook:   / sibayanrey20   📸 Instagram:   / sibayanrey07   🎵 TikTok:   / reysibayan20   ▶️ YouTube:    / @mrreysibayan   #ClaudeAI #EmailMarketing #BuildWithAI #BugFix #FullDemo #BuildInPublic #AIProductivity #ClaudeCowork #NodeJS #SelfHosted #Staycation #AirbnbHost