"Complete and accurate program requirements are critical because GFEBS will interface with or replace at least 141 systems," the report said.

The system should not be deployed to additional users until the deficiencies are corrected, the auditors stated.

But comments from Army project managers who were included in the report downplayed the auditors' findings.

"The Army believes the risks identified in this report are manageable and do not materially impact the [project's] cost and schedule," said an official with the Assistant Secretary of the Army (Acquisition, Logistics, and Technology).

SAP "values its strong relationship with the United States Army, which continues to implement SAP software to enhance transparency, speed and real-time analysis in its operations," the vendor said in a statement. "Just last week, the Army deployed wave six of GFEBS to 12,000 users of the Army National Guard, and the Army is scheduled to deploy future waves of implementation." SAP declined further comment.