Review third-party vendor invoices for pricing, unit, or service errors. Match vendor invoices to internal order records. Follow up with vendors to resolve discrepancies and request revised invoices. Use QuickBooks (or similar accounting system) to support billing workflows. Assist in preparing accurate client invoices based on validated vendor data. Store and manage service contracts in Hubspot. Send onboarding/welcome emails to new clients. Handle basic collections (light follow-ups to ensure invoice processing).