Delivary without Referance

go to 1. step:spro>logisticis execution>shipping>deliveries>delivery types>select LO>click on copy and name your delivery document type as say ZWOR2.step:use tcode:VOV8>select DL>click on copy and name your default document type as say ZWOR.3.step:Now again go to spro>logistics execution>shipping>deliveries>delivery type>select delivery document type ZWOR>double click on the delivery document type and assign ZWOR default order type ZWOR in it.4.step:Use tcode VOFA select billing type F2>click on copy and name your billing type as say ZWOR.5.step:Now again go to VOV8>click on ZWOR order type>assign billing type as ZWOR.Now Use Tcode VL01n and click on W/O Order Reference>system will ask you details like shipping point,delivery type,sales area. Enter all the details and complete the delivery as you do a normal delivery. Then create invoice as you create a normal invoice using Tcode VF01.This is how you configure Delivery w/o order reference.