It seems you're asking about a (likely a typo or shorthand for CADESIM or a similar system).
In the Mexican tax/administrative context, refers to the "Cédula de Acción a Distancia para la Elaboración del Sistema Integral de Multas" or sometimes the "Clave de CADESIMU" is a misremembered version of CADESIM — a web tool by the SAT (Servicio de Administración Tributaria) for generating fine payment forms. clave de cadesimu