A contact center coordinator in Córdoba put it to me this way: "I have 180 operators on four shifts, half of them rotate every fifteen days, and every Monday someone says they clocked in but the system didn't record it." That is the day-to-day life of a call center: lots of people, overlapping shifts, call spikes at fixed times, and non-stop turnover. Attendance control in this sector is not an administrative formality; it is the foundation upon which staffing, overtime, and payroll are calculated. Here I tell you how to tackle it in Argentina in 2026, what the regulations say, and where the trap lies.