Do publishers mind changing POV's in a story?

I am writing a novel, and I'm a little concerned with my POV's. I have two main charchters that interact with each other, but also sometimes do their own things. I switch from one charchter to the other, but it does make sense. Before I keep going, I want to know wether publishers get annoyed at that kind of thing, or if it's OK but not desired, or if it's fine. Some real proof is wanted, not just opinions. Thank you!