0IC_C03 Confusion

Hi

I loaded data from BX , BF and UM first time . I ran the query on 0IC_C03 and the total stock was showing double . As per someone's advice on the forum , this time I loaded BF and UM only .

Is this the right approach ,

1. Why should I not load BX

2. What is the sequence for compressing these requests , When should I choose "No marker " update

3. Should I choose "Early delta initialization" in BX and BF package or not ? What does this do ?

Thanks