Hi Clark
In outbound >>
create ecc del (with or w/0 ref)
EWM ODR >> ODO >> OD.
Simple >>
now ODO >>Follow in function>>Picking WT and confirm >> Then GI >> which will create auto OD.
or you can create OD first and then GI
And for complex >> you can have steps and you need to check wocr and packspec and then you can pick and PGI.
And prerequisites are to have good issue strategy and master data.
check document tab SCN EWM for systematic flow around above process. or check EWM 100 and EWM 110.
Regards
Suraj