thanks Lakshmipathi G for your important hints, you are Right. but i really didn't mean to make an order. 
I already did the whole process of Cross-company code sales and unfortunately when i displayed the Accounting Overview of the first Billing Document (when the ordering company code billed the end customer) the system says "the Accounting document has not yet been created".
And i found this FI Entries, but i'am not sure of the last entry.
Invoice to customer :
Dr A/R
Cr Sales
PGI at delivering plant :
Dr COGS
Cr Inventory
Inter-company Billing at delivering plant :
Dr A/R inter-company
Cr Sales
Payment at Selling Company Code :
Dr A/P inter company
Cr COGS inter company
so i posted this question to know if there is any problem with my demo system configuration in Account determination Procedure or if there is a function that i didn't activate, but i didn't want a direct answer to my Case's issue.
thanks again Mr. Lakshmipathi G.