On cutover day
The old platform was hiding things. The new one will not forgive them.
Twelve years of Avaya vectors, Cisco scripts, or Engage strategies do not map one-to-one to Genesys Cloud Architect. A queue gets rebuilt without its callback behavior. A business unit in Workforce Management gets created with the wrong week start, and the remedy is not "edit it" — it is "build a new one." Some of these settings are permanent.
Some settings cannot be undone after go-live.