This audit would examine the effectiveness of Defence’s procurement and implementation of the Defence Enterprise Resource Planning (ERP) Program to date.

The ERP Program is a Defence-wide priority and a key part of the Defence transformation agenda. The most recent release in May 2025 — ERP Tranche 1B Main release — was Defence’s fifth and largest ERP capability release to date, and was to deliver the finance, procurement, supply chain management, transport management, land maintenance and engineering components of the ERP system. Defence intended for this release to significantly expand the number of users accessing ERP in the course of their day-to-day activities within Defence.

This audit would examine whether the ERP system delivered is consistent with the capability and specifications approved by government.