• Collect and review vendor invoices across broadcast, print and out-of-home channels to ensure alignment with media buys and insertion orders (IOs). • Manage and maintain Unlock’s invoice system, ensuring it houses all vendor invoices for easy access by the finance team during audit periods. • Resolve discrepancies between billed and purchased amounts by liaising with vendors and internal teams. • Apply appropriate project numbers and vendor codes to invoices and escalate any issues requiring account team intervention. • Track missing invoices and maintain updated records via the Media Details Report and Workamajig. • Process credit memos and ensure proper documentation in Strata. • Generate monthly actualized media spend reports using Strata for team flowchart updates. • Maintain accurate monthly post-spend reports and ensure alignment with documented expenditures. • Collaborate with media and accounting teams to streamline invoice processing and troubleshoot outstanding issues. • Attend routine meetings to review financial reports and contribute insights for optimizing the billing process. • Support invoice digitization efforts by coordinating with vendor representatives.