Final answer:
HR Professionals cannot directly input disciplinary actions in IPPS-A; such actions require validation and authorization by command or management adhering to due process.
Step-by-step explanation:
The statement that an HR Professional can directly input disciplinary actions in IPPS-A based on substantiating documentation is B) False.
The Integrated Personnel and Pay System - Army (IPPS-A) is designed to manage human resources and payroll for the U.S. Army. However, HR professionals are usually guided by specific policies and procedures that establish who has the authority to input disciplinary actions.
Generally, such actions must be validated and authorized by a certain level of command or management, ensuring proper due process and adherence to regulations before being input into any personnel management system like IPPS-A.