The calls draw a curve, and a rota of nine-to-five shifts draws a flat line
An inbound floor with thirty-two agents on the books takes its first calls at six, climbs to a peak between eleven and two, falls through the afternoon and keeps a night line of two for the customers who ring at three in the morning. Nobody plans that with a single shift. The rota is six lines with staggered starts, a peak line that exists on weekdays only, and a weekend built from fewer people on the same lines, with each agent working one weekend in three.
The failures are the usual ones. Team leaders plan their own teams in their own spreadsheets, so the floor finds out on Monday that the early line has six people and the late line has two. An agent swaps a Saturday with a colleague by text, and payroll pays the wrong person. The night premium is worked out by hand from a printout rather than from the hours that were planned, and every payday brings a queue at the team leader’s desk with questions about hours and nights.
Below is how a floor of thirty-two looks in InShift: the lines as shift types, a weekday of the call curve as a table, the night premium as a rule, the app through an agent’s eyes before the rota goes out, and each agent’s own hours in their pocket a week before payday.