To ensure that the company is not taking any unwanted credit risks, the internal auditor should test controls that ensure construction orders are initiated only after the second invoice, which represents 70% of the payment, is paid. This control is critical because it minimizes the financial risk to the company by ensuring that a significant portion of the payment is received before the majority of the work is undertaken. This practice helps protect the company from potential non-payment issues and reduces the financial exposure associated with the project.
Reference:
COSO Framework
The Institute of Internal Auditors (IIA) Standard 2130: Control