This management advisory provides the results of the DoD Office of Inspector General’s audit. During our audit of Remote Maintenance and Distribution Cell–Ukraine Restructuring Contract (D2023-D000AX-0116.000), we identified issues that resulted in multiple improper payments. In addition, we found that the contracting officer waived the COR review and approval of invoices as well as relied on the Defense Contract Audit Agency’s closeout audits, which primarily focus on indirect cost rates and not on whether invoiced amounts were allowable, allocable, or reasonable.