Deliver Related (Project delivery) Billing

Is it possible to do delivery related (project delivery) billing in PS. Our enterprise uses PS for the manufacturing and procurement process, but there is compelling business / statutory requirement to do delivery related billing.

Currently we call the materials in sales orders, then do sales order delivery and then delivery related billing. This leads discrepancies and necessitates duplication of data entry, once in project networks and then again in sales orders.

Looking for a solution to do project delivery and bill the materials referencing this delivery.

Muraleedharan.R