0FIAP_M30 Data Flow

Hi,

I installed and activated standard Content under 0FIAP_M30.

0FIAP_M30 is made up of 2 Cubes

0FIAP_R30  - Vendors: Line Items (Direct)

This cube is based on 0FI_AP_30 Data source and Direct/Virtual cube which gets data at run time

0FIAP_C30   - Vendors: Line Items (Replicated)

I am bit confused with 0FIAP_C30,There are 2 Transformations provided from this cube

One Transformation 0FI_AP_30 --> 0FIAP_C30 and the other 0FI_AP_04-->0FIAP_O03 -->0FIAP_C30

Questions:

1. What is the role of 0FIAP_C30 in multi provider,As we already got Direct/Virtual cube which gets data at run time.
2. Do we need to schedule daily data load to 0FIAP_C30,If so from where i need to load daily data 0FI_AP_30 --> 0FIAP_C30 or 0FI_AP_04-->0FIAP_O03 -->0FIAP_C30.....What is the difference.

Apologies for too many questions,But i am confused as i haven't worked on direct cube so far.

Replies will be greatly helpful and appreciated.

Thanks in advance