Which billing schedule can be applied to an entire sales order or at the line item level?

The chosen answer, which identifies the Standard Billing Schedule, correctly highlights a flexible billing option within the NetSuite platform. This schedule can be applied to an entire sales order or to individual line items, allowing users to manage billing more effectively depending on the needs of the customer or the structure of the project. The versatility of the Standard Billing Schedule ensures that it accommodates various transaction types and project requirements, which is crucial for businesses that need to handle different pricing and billing arrangements.

In contrast, other billing schedules such as Fixed Bid Interval Billing, Time and Materials, and Charge Based Billing are more specific in their application. Fixed Bid Interval Billing typically pertains to projects with set milestones and durations, while Time and Materials billing relates directly to labor and material costs incurred over time. Charge Based Billing usually involves fees based on the actual expenses incurred. These schedules have specific scenarios where they are most beneficial but do not provide the same level of general applicability as the Standard Billing Schedule across whole sales orders or at the individual line item level. Thus, the Standard Billing Schedule is the option that best aligns with the requirement for flexibility in billing practices across different contexts within the NetSuite Financial system.