Not your problem under the hot potato model. It's not impossible and here's the other thing: it often doesn't matter if things get broken to your megacorp as lo

Not your problem under the hot potato model. It's not impossible and here's the other thing: it often doesn't matter if things get broken to your megacorp as long as you keep up appearances with clients. Sorry if this sounds really grim / cynical, I've simply seen enough of these kinds of migrations to know that it is fundamentally opposite of my perception of engineering philosophy. It often becomes more of a question of business rather than correctness. (Can we simply fire the smaller customers? -> yes.)