---
title: "Cross-system ETL and central data warehouse"
description: "Ends data silos: customer in the CRM, order in the shop, finances in Billingo/Számlázz.hu, bank transfers at OTP/Wise. Continuous background sync (n8n + Supabas"
canonical: https://automataai.hu/en/workflows/data-analytics/cross-system-data-pipeline
language: en
publisher: Automata AI
updated: 2026-09-19
---

# Cross-system ETL and central data warehouse

Category: Data processing, spreadsheets, databases and analytics


Ends data silos: customer in the CRM, order in the shop, finances in Billingo/Számlázz.hu, bank transfers at OTP/Wise. Continuous background sync (n8n + Supabase/PostgreSQL) pulls every new transaction into one 360-degree customer record, the single source of truth. A retry queue guards against a failed webhook or a broken API, and alerts the technical owner instantly.

## How it works

1. Connectors to every system
2. Unified customer record
3. Retry queue and alerts

Tools: n8n, Supabase, PostgreSQL, Airbyte

Source: AI Automation Market Report and Practical Guide (2025–2026)