Final answer:
The component that is usually not part of an ERP's core applications is legacy systems. ERPs typically replace older legacy systems with modern, integrated modules that streamline business processes. Correct answer is 1) legacy systems
Step-by-step explanation:
The ERP's core applications typically include integrated systems that manage essential business processes, such as financial accounting, material management, and sales and distribution. These components work synchronously to provide a comprehensive view of the enterprise operations.
However, legacy systems are generally not part of an ERP's core applications because legacy systems are older software applications or technologies that were used before ERP solutions were adopted. The purpose of an ERP is to streamline and update business processes, so it typically replaces these older legacy systems with more modern, integrated modules within the ERP framework. Therefore, the Correct answer is 1) legacy systems.