Oracle Project Billing allows you to simplify client invoicing, improve cash flow, and measure the profitability of contract projects with support for planning, execution, and analysis. It utilizes information from the work breakdown structure and provides flexible revenue accrual and invoice generation features, enabling you to track unbilled receivables and bill customers for individual projects, as well as internal charge-backs. Oracle Project Billing is part of the Oracle Projects family of applications, and integrates seamlessly with other Oracle E-Business Suite applications, including Oracle Financials, Oracle Supply Chain Management, Oracle Human Resources Management, Oracle Customer Relationship Management, Oracle Sales, Oracle Advanced Procurement and the Oracle Collaboration Suite.