It is a system that certifies that the CFDIs that have been sent (Accounts Receivable) and received (Accounts Payable) in an Accounting system, match the CFDIs registered at SAT’s website (Mexican Fiscal Authority). The system downloads the XML files related to the CFDIs directly from the SAT website, and validates that both types of CFDIs: those sent to the customers, and those received from the vendors, match the CFDIs in the Accounting System. Our customers Benefit from the certainty that their fiscal records match those registered at the Mexican Fiscal Authority. Additionally, the system correlates the “complementos de pago” with the corresponding invoices, and validates amounts, currency, CFDI status (valid or cancelled), invoices without “complementos de pago”, etc.