Two Sales order from Assembly Processing .

Dear Expert,

   We have a Assembly processing scenario , now with current process Project created with creation of Sales order . As per std process we have scope to select only one Sales document type and Sales order and project was created against those.

Now our requirement is  in our process we have received two order from customer against one project like One order supply of Service Material  another    Order for Service required for that material .

So we requirement to  create two sales order (with different Sales order document type ) while creating the Project by Assembly processing .

Please help me work out for this .

Thanks ,

Virendra .