This study aims to analyze the effect of E-Service Quality of BYOND by BSI on customer satisfaction and loyalty among customers of Bank Syariah Indonesia in Pekanbaru City. This research employs a quantitative approach, with the population consisting of all Bank Syariah Indonesia customers in Pekanbaru who use the BYOND by BSI application. The sampling technique used is purposive sampling, with a total sample of 130 respondents. Data analysis is conducted using the Structural Equation Modelling–
