Have you had difficulty contacting Sefaz and could not print an important invoice? Learn more about the NF-e emission method that can save you at times like this. The Contingency FSDA tool has emerged as a solution for companies to keep invoicing even if contact with Sefaz is complicated. Using this method, you can generate a security form (Danfe) for auxiliary document printing, and when communication is possible again, you can reprint the official NF-e through the system. The FSDA contingency document has the same tax amount for the consumer as the one issued in the standard process.