Sellu

Sellu is a Shopify App that allows ecommerce merchants to easily generate CFDI 4.0 invoices for their customers. The app seamlessly connects the store with the SAT, enabling customers to request and receive their invoices in PDF and XML format. Sellu automates the process by including sales without invoices in the global invoice at the end of the period, handling refunds with credit notes, and managing credit payments with payment supplements. The app prioritizes security by storing the digital seal with the certification provider and allowing the accountant to download the entire month's data in a ZIP file.