When an entity is checked, the method CHECK_ENTITY is called once for each entity type of the changed master data. In this method you define all rules for checking the entities in the data model.
When checking a change request, which methods are called consecutively:
A . CHECK_CREQUEST_START
B . CHECK_CREQUEST (once for each entity type of the changed master data in the change request)
C . CHECK_CREUQEST_FINAL
D . None of the above.
Answer: A,B,C