Which feature of Oracle OM helps prevent overselling during order fulfillment?

The feature that plays a crucial role in preventing overselling during order fulfillment in Oracle Order Management is inventory reservations. When an order is placed, the system can reserve the quantity of items needed for that order, ensuring that those items are set aside and not allocated to other orders. This reservation process is essential because it guarantees that once a customer has committed to a purchase, the inventory needed to fulfill that purchase is secured, thus avoiding any overselling scenarios.

By managing inventory reservations effectively, the system can provide accurate availability information, enhance customer satisfaction, and reduce the likelihood of backorders or stockouts. This feature is particularly important in environments where demand fluctuates or where items are in high demand, as it ensures that the inventory can be accurately tracked and fulfilled according to customer orders without the risk of additional orders causing a shortfall.

In comparison, the other options do not directly contribute to the prevention of overselling during order fulfillment. Customer feedback relates more to product improvement and satisfaction, item returns manage post-sale activities, and sales promotions are designed to drive demand rather than manage inventory. Therefore, inventory reservations stand out as the most effective method for ensuring that customer orders are fulfilled without the risk of overselling.