Magnets' magnetization direction is most import in their application.And if done wrong,it's hard to make up and may be useless.So,before an order,both parties should be take it seriously.
Magnetization diection can be:
1.Axially orientation/ usually through thickness
2.One face multi-poles
3.Double faces multi-poles
4.Fully radially/ usually through diameter
5.Radially multi-poles