Which of the following are prerequisites to perform the processes in the two-tier procurement scenario for Procurement of DirectMaterials (J45)?

Which of the following are prerequisites to perform the processes in the two-tier procurement scenario for Procurement of DirectMaterials (J45)?

Note: There are 2 correct answers to this question.
A . Creation of analytic reports in subsidiary system
B . Master data synchronization between headquarters and subsidiary system
C . Connection / integration between headquarters andsubsidiary system
D . Import of catalogs both in headquarters and subsidiary system

Answer: B,C