Which two services are supported by Fedex and UPS during shipping integration?

The correct answer focuses on the ability of FedEx and UPS to provide negotiated rates for shipping, which is a critical component of their services. Negotiated rates refer to customized pricing agreements that businesses can establish based on their shipping volume or specific contractual arrangements with the carriers. This allows companies to manage their shipping costs more effectively and optimize their logistics.

Utilizing negotiated rates can be particularly beneficial for organizations that frequently ship items, as it can lead to significant savings compared to standard pricing. This service is an integral aspect of shipping integration within a platform like NetSuite, as it enhances the overall efficiency and cost-effectiveness of order fulfillment and logistics management.

Regarding the other options, tracking numbers for returns is typically a standard feature offered by shipping services, so it may not be specifically emphasized as a unique service. The notion that shipping items should only be used by one subsidiary does not reflect the typical operational flexibility found in enterprise resource planning systems. Custom shipping solutions can be part of the offerings as well, but they are often tailored to specific business needs rather than being a standard service like negotiated rates.