Lúcida is a billing application in Costa Rica and Mexico that allows customers to create invoices and credit notes that comply with Costa Rica's and Mexico’s government mandatory requirements of electronic invoices. All the invoices from Xero are automatically sent to the Ministerio de Hacienda or Servicio de Administración Tributaria (SAT) for validation and tracing. It allows professionals and businesses to manage their sales and purchases with an easy-to-use UI.