Which sales documents can update planned revenues on WBS elements?

Sales order and billing are some of the sales documents that can update planned revenues on WBS elements. Sales order is a document that records a customer’s request for goods or services from a sales organization. Billing is a document that records the delivery of goods or services to a customer and requests payment for them. Both sales order and billing can update planned revenues on WBS elements if they are assigned to them directly or indirectly via network activities. Reference:https://help.sap.com/doc/0f069b2e08b748f1b480d4c8b46c3c49/100/en-US/6a7a9f0a6e421014e10000000a174cb4.html