Etrust PIS is a production information system for make-to-order and series manufacturers, with an AI assistant (Trustek) on every screen. It covers sales orders, bills of materials and routings, automatic release of work orders, MRP, production planning and scheduling by shifts and workers, MES shop-floor data capture (Start & Stop on control centers), subcontracting, paint shop, warehouse, serial numbers, and pre- and post-calculation of product cost. Industry templates are available for machine building, project-based manufacturing, vehicles and conversions, series production with OEE, and laser cutting (Lantek nesting integration). Etrust PIS runs standalone or alongside an existing ERP such as Odoo or Calculus. Developed in Slovenia by Etrust d.o.o. since 1993 and used by Tehnos, Sico, Robeta, Metalika and other manufacturers.