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Occupancy is the percentage of an agent’s logged-in time that is spent on contact-related activity. ‘Contact-related activity’ covers talk-time, hold, and after-call work (ACW). So, if your contact center has occupancy of 75%, it means that its agents are spending three-quarters of their logged-in time doing ‘contact-related activities’.
According to COPC, it is calculated using this formula: (total talk time + total hold time + total after-call work i.e. ACW) / hours logged in (and ready to take contacts).
Good practice is not to exceed 90% occupancy. Call Center Helper estimates that the industry average is 83%.
Target occupancy should be factored into the staffing calculation. E.g. if you are aiming for 83% occupancy, you should inflate your staffing requirement by 1/(0.83)-1 = 20%.
Utilization is deceptively similar to occupancy but has some subtle but important differences. It is the percentage of paid time that is spent on any productive activity.
It can be expressed as (total talk time + total hold time + total ACW + time spent on other productive activities) / paid hours.
Productivity is the percentage of an agent's paid time that is productive time. It is the inverse of shrinkage.
Shrinkage is the percentage of paid time that employees are not available to handle contacts. This includes unproductive at-work activities such as breaks, meetings, training, and 1:1s, plus out-of-office time for time off, sickness, tardiness, and general unexplained absences.
Shrinkage is an important number to track, since it plays an important role in how many people need to be scheduled in each interval. If you don’t factor in shrinkage when calculating how many staff to schedule, you will always be understaffed. E.g. if you are expecting 25% shrinkage, you should inflate your staffing requirement by 1/(1- 25%) = 33%. If you are also inflating the requirement figure for occupancy (see above), the two percentages should be summed.
Since productivity is the inverse of shrinkage, 25% shrinkage equates to 75% productivity.
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Originally published on Aug 17, 2022, updated on Jan 11, 2023.