“…Therefore, according to previous relevant researches and characteristics of FDAs associated with the current situation of the COVID-19 outbreak, this study focuses on technological and mental factors affecting customers' continuance intentions of using FDAs in China by integrating variables from UTAUT, ECM and the Task-Technology Fit model, including performance expectancy ( Mun et al, 2017 ; Yeo et al, 2017 ; Roh and Park, 2019 ), effort expectancy ( Ray et al, 2019 ), social influence ( Roh and Park, 2019 ) from UTAUT, satisfaction ( He et al, 2018 ) and confirmation ( Yeo et al, 2017 ) from ECM, perceived technology task fit ( Elvandari et al, 2018 ) from the Task-Technology Fit model and trust ( Cho et al, 2019 ). Furthermore, the following parts introduce the theoretical foundations that contribute to the conceptualisation of the research model.…”