Backorder processing in SD

Back order processing  in SD 

let's understand the concept of  Back order processing  in SD

 Refer to the below  diagram 

Availability Check in sales order

Availability Check in sales order

let's understand the concept of  Availability Check

A diagram is given below

Order Scheduling In SD

Order Scheduling In SD 

let's understand the concept of Scheduling first.

A diagram is given below...