Running a hypercare period that actually works

The go-live weekend went perfectly. Monday morning, 400 incidents landed in the queue. This is the normal shape of a major system cutover, and it is why hypercare, the elevated support period after go-live, deserves the same planning rigour as the build itself.

A retail bank we work with structured their 30-day hypercare around one discipline: a single daily record. Each day captured incidents raised, incidents resolved, open count, and resolution rate, split by severity. Status was automatic: Stable at 90% resolution or above, Monitoring from 70% to 89%, Critical below 70%. No debates about how things were going. The number decided.

The daily record did three things. It made the trend visible: day 4 peaked at 92 open incidents, day 9 crossed into Monitoring, day 13 reached Stable and stayed there. It gave the exit decision an objective basis: five consecutive Stable days with zero open Severity 1s. And it turned the daily leadership call from anecdote-swapping into a two-minute review of one chart.

The counter-intuitive lesson was about staffing. The bank had planned to taper support in week 3. The data showed Severity 3 incidents were still arriving steadily even as Severity 1s vanished, so they tapered the senior engineers but kept analyst capacity flat, and exited hypercare a week earlier than planned with a clean backlog.

If you are planning a cutover, decide your stability thresholds and exit criteria before go-live, not during. Publish the daily chart where everyone can see it. And keep the record honest: an incident reopened is an incident raised.