The aim of this study is to determine the opinions of school administrators about the effectiveness of the management process in school administration. Phenomenology design, one of the qualitative research techniques, was used in this study. The study group consisted of 14 teachers selected using convenience sampling method.  Data were collected using a semi-structured interview form. The researcher conducted face-to-face interviews to obtain the data. The raw data collected from the interview form were methodologically processed for data analysis. The data were evaluated using content analysis. In the study, effective factors in school management were identified as the role and characteristics of the school principal, school culture and climate, the influence of stakeholders, distribution of resources, social factors, communication and cooperation. While the areas for improvement include regulations related to school administrators and school management, school climate, cooperation, rewarding, and student orientation stand out among the suggestions to increase achievement. Challenges faced by school administrators were categorized as school-related (staff, student, parent problems) and non-school-related (administrative, legal challenges) factors.