Process sales CSVs into invoices with data tables and email notifications

🧾 Smart Sales Invoice Processor (Data tables Edition) Transform uploaded sales CSV files into validated, enriched invoices, all handled natively inside n8n using Data tables, validation logic, enrichment, duplicate detection, and automated email notifications. This workflow demonstrates a full ETL + business automation pattern, turning raw CSV data into structured, auditable records ready for storage and customer notifications. ✨ Features ✅ Multi-format CSV input (file upload or raw text) ✅ Validation for email, quantity, date, and required fields ✅ Automatic error handling with 400 Bad Request JSON response for invalid CSVs ✅ Product enrichment from Products Datatable ✅ Invoice creation an

Help me set up the n8n workflow "Process sales CSVs into invoices with data tables and email notifications" (https://n8n.io/workflows/10274). It uses: Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.