Order 2000 and 2001 in DBM

Hi

I am using order 2000 and in split tab , i am splitting against order 2001 (wty) for warranty purpose. Then in wty tab i can generate the wty claim.

Then instead can i use 2001 as my main order.

What is the purpose of 2001 if we can use 2000 (and then) for warranty purpose.

Regards,

Ashutosh