Validate, deduplicate, and store customers via API with Supabase, Slack, Telegram, and email

(Retail) Customer Cleanup API → Supabase and send Notification

This workflow provides an API-first solution to validate, clean, deduplicate and store customer data in Supabase. It ensures consistent customer records, prevents duplicates and keeps both internal teams and customers informed through automated notifications.

This workflow acts as a backend customer intake API. It validates and normalizes incoming customer data, checks for existing users in Supabase, stores new customers safely and returns clear API responses. Internal teams receive Slack and Telegram updates, while customers get an email confirmation on successful creation.

You receive:

Centralized customer data validation Automatic duplicate prevention Supabase-backed customer storage Real-time API responses Team notifications + user confirmation email

Ideal for retail, e-commerce and SaaS teams that want clean customer data without manual intervention.

Quick Start – Implementation Steps

1. Import the provided n8n workflow JSON. 2. Configure Supabase credentials with read/write access. 3. Connect Slack, Telegram and Gmail/SMTP credentials. 4. Copy the Webhook URL and use it as your customer intake API. 5. Activate the workflow — your customer API is live.