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This study aims to analyze the procedure for using the Ollin mobile banking application at PT. Bank Nagari West Sumatra. The main problem in this research is the lack of public understanding regarding the proper procedures for using digital banking applications, which may affect the effectiveness and efficiency of banking services. The purpose of this study is to identify and describe the procedures involved in using the Ollin application and its implementation in supporting digital banking services. This research uses a qualitative descriptive method with data collection techniques through field research and library research. The results show that the procedure for using the Ollin application consists of several stages, including downloading the application, registration, activation through OTP verification, login, and utilization of various features such as balance inquiry, fund transfers, and bill payments. The implementation of these procedures has made banking services more practical, efficient, and accessible anytime and anywhere. Overall, the Ollin application contributes to improving service quality and supports the development of digital banking at PT. Bank Nagari.

mobile banking; Ollin application; banking procedures; digital banking; service quality