Which of the following is NOT a key module of NetSuite ERP?

Human Resources Management is not considered a key module of NetSuite ERP, making it the correct choice in this context. NetSuite primarily focuses on providing a suite of integrated applications for businesses, with its key modules being Financial Management, Customer Relationship Management (CRM), and Inventory Management. These core modules work together to streamline processes such as financial reporting, customer interactions, and inventory control, thereby enhancing overall operational efficiency.

While HR functionalities may be available through third-party integrations or as a part of broader service offerings, they do not comprise a primary component of the core ERP modules in NetSuite. Therefore, the emphasis remains on financial, customer, and inventory management as central elements of the ERP system.