App quota Sat 0.0.1 APKs

How to schedule, request, consult and cancel your SAT appointment?
The Tax Administration Service (SAT) offers the possibility of carrying out procedures by appointment or without appointment, right away, we will enlist the steps and requirements to take an appointment by phone and the Internet, as well as how to process the e.firma.
RFC query - Electronic signature
The procedures needed in the most frequent SAT appointment are the registration in the Federal Taxpayers Registry (RFC), the obtaining and renewal of E.Firma expired, the processing of the password and the changes of tax regime.