FIEL - Sales Glossary - Upnify
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The Advanced Electronic Signature, also known as FIEL, is a security instrument, its function is to uniquely and securely identify each taxpayer. This document safeguards the taxpayer's information and guarantees his identity.

With these document taxpayers can authenticate themselves before the SAT, file returns, process Digital Seal Certificates and digitally sign tax documents.

The Advanced Electronic Signature is a necessary document to process a Digital Seal Certificate (CSD) and this element is used to generate CFDIs.

The Sales Glossary is a compendium of all the most commonly used terminology in sales strategy. Many of the concepts listed here are used when implementing a CRM system or a digital sales funnel, no matter if they are legacy systems or an online CRM. See also our blog that deals with sales techniques, marketing and sales culture.