va01 sales order trigger a project

Dear all,

when i use va01 to trigger a project, the project should be automatically generated.

but my problem is when i save the sales order, the dialogue box appears and asks me to fill in the standard network, network profile. After that, it asks me to fill in the billing element.

How could i trigger the project automatically?

how can i link the standard network and sales order? i mean the configuration.

thanks a lot.