a. WAWF is an application in the PIEE eBusiness Suite used by contractors to invoice and by Government officials to accept and certify for goods and services. Contractors must submit contract invoices electronically, mandated by Public Law: Section 1008 of the NDAA of FY 2001. DFARS Clause 252.232-7003 (DFARS 232.7004) requires electronic invoicing and electronic supporting documentation. WAWF allows vendors to submit and track invoices and allows the Army to receive and accept those invoices over the Web, enabling the Army to process those invoices in a real-time, paperless environment.

b. GPC Use of WAWF. When the GPC is used as the method of payment on a contract, the contractor must create a receiving report in WAWF. The Government acceptor must then accept the receiving report in WAWF.

c. WAWF users must register in PIEE and request the corresponding role. The contractor will request the “Vendor” role, and the Government acceptor will request the “Acceptor” role. Refer to the "Registration" link on the PIEE home page and the Help button for details on registering in WAWF. For more information, contact DFAS Customer Service: 1-800-756-4571. See PIEE web-based training for more information on the WAWF module.