how create with code po and so
Are you mean to say you want to create PO & SO by writing some code.
Kindly Look at this Codeunit Blanket Purch. Order to Order you will get an idea.
The quality of reply depends upon explanation of your question, if the question is not clear (or is vague), then you are going to get similar response.
So please let us know more about what you are looking for.