The implementation of religious programs in schools requires an effective control system to improve students' discipline in performing obligatory prayers. MAN 1 Payakumbuh introduced the Kartu Sakti program as an innovation to monitor students' participation in congregational prayers through an electronic card system. This study aimed to analyze the implementation of the Kartu Sakti program as a control media for students' prayer discipline and to identify the supporting and inhibiting factors affecting its implementation. This research employed a qualitative case study approach. Data were collected through observations, interviews with the Head of Student Affairs, Islamic Religious Education teachers, homeroom teachers, and students, as well as documentation. The data were analyzed using data reduction, data display, and conclusion drawing, while data validity was ensured through source and technique triangulation. The findings revealed that the implementation of the Kartu Sakti program was carried out through four stages: planning, implementation, supervision, and evaluation. The program has facilitated the school in monitoring students' participation in congregational prayers and has contributed to improving prayer discipline. The supporting factors include strong support from the school principal, the active involvement of the student affairs team, an easy-to-use web-based system, and adequate facilities. Meanwhile, the main inhibiting factors are the loss of students' cards and the fact that some students still perform prayers mainly because of external supervision rather than personal awareness. Therefore, continuous religious guidance is necessary to foster students' intrinsic awareness and responsibility in performing prayers.