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Your SAT e.firma is valid, but the legal representative or employer's tax ID (RFC) is not linked to the IMSS employer registration. Solution: Go to the IMSS SUBDELEGACIÓN office with your e.firma, power of attorney, and employer registration number. Request the "Ventanilla Virtual" registration to link your RFC to the IMSS system.
: Minimizes risks associated with manual handwriting errors or the physical loss of paper files. Accessing Your Information ece imss gob mx
Benefits and Costs of Electronic Medical Records - IADB Publications Your SAT e