For supply chain managers and suppliers of engine parts, the commercial drivers include inventory management and management of related working capital while fulfilling both manufacturing and maintenance—repair-overhaul (MRO) capacity. In this case, our client—a supplier of aircraft engine spare components—approached Cyient for help in accurately forecasting, and meeting their customers’ demand at the right time. The forecasting had to consider the predictable demands of manufacturing and the unpredictable demands of MROs and aftermarket. Hence there were different sets of challenges to deliver appropriate levels of off-the-shelf availability. We provided a state model that uses past usage trends of different parts to forecast the demand for unscheduled consumables. The optimization module of this digital tool looks into costs and criticality of parts to define the numbers that will be reordered. It can also suggest the economic order quantities to minimize the inventory and ordering costs. The platform is tailored to facilitate more accurate year-wise forecasting with improved COGS and reduced buffer.