Process invoices accurately and ensure documentation is complete. Follow up with internal departments for approvals and coding clarification. Create and maintain vendor records, ensuring W-9 forms and tax documentation are up to date. Manage multiple shared inboxes for A/P communication and document submission. Prepare and execute weekly payment runs via ACH and in-house check processing. Occasionally process payments directly through vendor websites. Monitor chargebacks and assist with expense reporting. Maintain clear records of all payments and supporting documentation for audits. Communicate with vendors to resolve billing discrepancies, disputes, and inquiries. Manage phone and email correspondence regarding payments and account clarifications. Serve as a professional liaison between vendors and internal departments. Generate A/P aging reports and assist in reconciling vendor accounts. Maintain and update Excel reports. Ensure W-9 documentation is accurate and determine proper processing criteria. Assist in preparing audit-ready documentation and support compliance reviews. Support continuous improvement initiatives for A/P workflows.