WAWF / PIEE Invoice Services
.NET XML web services interface directly with the DoD Wide Area Workflow (WAWF) / PIEE, replacing a legacy Java utility. They consume and emit XML for Cost, Grant, and NPI vouchers and support the full action set: submit, void, recall, reject, approve. Hundreds of XML files are processed hourly through XSD-validated pipelines — eliminating data-entry errors and enabling near-real-time financial posting.