In Workday HCM, compensation grades are a core component of the job and grade framework, which belongs to organizational configuration rather than transactional staffing activities. The primary purpose of assigning a compensation grade to a job profile is to define and default the appropriate pay range—minimum, midpoint, and maximum—for employees performing that job.

When a compensation grade is attached to a job profile, Workday uses the associated grade profiles (which may vary by location, currency, or frequency) to automatically determine the salary or hourly range during hire, job change, and compensation change events. This ensures consistency, internal equity, and alignment with market data across the organization.

Compensation grades do not control compensation frequency, bonus eligibility, or target compensation amounts. Frequency is defined at the compensation plan level, bonus eligibility is governed by eligibility rules, and target compensation is typically managed through compensation plans and guidelines.

By separating job architecture (grades) from transactional compensation plans, Workday enables scalable global compensation structures that are easy to maintain and audit. Therefore, the correct and primary purpose of assigning a compensation grade to a job profile is to default the appropriate pay range, making option C correct.