Business Rules/validations settings in MDMe

HI,

Please tell me where and how can one define the Business rules and validations in MDMe. i give below an example to explain my query.

A ship to customer can't be linked with a sold to customer as a bill to customer, it has to be linked as ship to only. in R/3 we can restrict the linkages as we want, but if someone is having different linkages in other legacy system for the same ship to customer or creating a customer directly into MDMe and then distributing it to multiple applications, how can we take care of such rules? there are many more rules which need to be taken care?.

Do we have business rules/validations setting in MDMe?