Seat utilisation: the cleanest expansion signal you have

Seat utilisation is the most legible signal because it is a ratio you already own: active seats over purchased seats. The number to watch is not how many seats a customer has, it is how full they are. An account at ninety percent of its seat limit for two consecutive weeks is pressing against the plan in a way that creates a natural upgrade conversation (userlens). The two-week persistence rule matters: a single spike might be a one-off bulk import, but sustained saturation is a team that has genuinely outgrown its plan.

Define active sharply or the ratio rots. A seat that logged in once in March is not active; the workable definition is a user who triggered a meaningful event in the last thirty days, which means you need clean event tracking underneath. Bill nine seats, four of them dormant, and your saturation reads fifty-six percent when the real working number is something else entirely. Get the denominator and the numerator both honest before you trust the alert.

Worked example. A 50-seat marketing-ops account sits at 38 active seats (76 percent) for a quiet quarter, then a reorganisation pulls two adjacent teams onto the tool. Within ten days active seats climb to 46 (92 percent) and hold there for the full fortnight. That is not noise, it is a department-wide adoption event, and the signal should fire the afternoon it crosses the threshold, not at the renewal six months later by which point the team has either been blocked from inviting people or quietly worked around you. The pattern scales: one 20M ARR company running an 80-percent consumption trigger across 200 accounts surfaced 35 expansion opportunities in a single quarter, closed eight, and added 180K in expansion ARR (Prospeo). The signal did the sourcing that a quarterly review never would have.