Final answer:
The statement is true; the OE/S process indeed sends a notification to the billing department about a pending shipment as part of the order-to-cash cycle.
Step-by-step explanation:
The statement that the OE/S process sends the sales order notification to the billing department to notify them of a pending shipment is true. OE/S stands for Order Entry/Sales Order Processing, which is a key part of the order-to-cash cycle in business. When a sales order is created, one of the crucial steps is to notify the billing department about the upcoming shipment, enabling them to prepare for the billing process, update financial records, and ensure timely invoicing once the goods have been shipped.