Stepper motor and driver A+ A- B+ B- does polarity matter?

Question

Electronics

Good day!
There is an industrial stepper motor driver and a stepper motor itself (bipolar). On the driver, the contacts are signed A + A- B + B-, but the engine has practically no markings, only a connector for connecting wires.
I called two windings.
So the question is, is the polarity important and where does it come from (it seems that during control the driver changes it, i.e. the sequence of phase connections is important, why)?
Do I think correctly:
what if I mix up the polarity in one pair, it will simply rotate in the wrong direction?
PS Now I google the question - somewhere they write that if you swap two phases, it will rotate in the other direction, somewhere that swapping the poles of one phase will rotate into another - who is right ??

Answer 1

You just connect the windings and check if it doesn’t spin or spins in the wrong direction, you change two wires at one winding in places, if it’s wrong again, then you change two wires at the second winding.