This document discusses criteria for selecting an enterprise resource planning (ERP) package. It conducted a literature review to identify 15 common selection criteria. A questionnaire with these criteria was distributed to 55 Turkish manufacturing companies. The most important criteria identified were: fit with parent/allied organization systems, cross-module integration, compatibility between other systems, and references of the vendor. Statistically significant differences were found between companies using MRP/MRPII systems versus those using their own or no system for criteria related to organizational fit and structure. The study provides Turkish companies and ERP vendors information on important selection criteria.