“…Contrary to the earlier systematic review, which considered the core factors of the theoretical models in the analysis process (Ahmad, 2018), the current systematic review only considered the external factors to the original constructs of TAM, such as perceived usefulness, perceived ease of use, attitude towards use, behavioral intention, and actual use. Open Journal of Business and Management Trust 5 (Khalilzadeh et al, 2017), (Sharma, 2019), (Chawla & Joshi, 2021), (Liébana-Cabanillas et al, 2014), (Al Khasawneh, 2015) Facilitating Condition 4 (Khalilzadeh et al, 2017), (Chawla & Joshi, 2021), (Giovanis et al, 2021), (Hussain et al, 2019) Self-Efficacy 4 (Khalilzadeh et al, 2017), (Bailey et al, 2017), (Giovanis et al, 2019), (Alalwan et al, 2016) Perceived Mobility 4 (Yen & Wu, 2016), (Zhang & Mao, 2020) It can be seen that perceived security and compatibility are the most frequent factors affecting mobile financial services adoption, which appeared in seven studies. This is followed by subjective norm with six studies, Trust with five studies, facilitating condition, self-efficacy, perceived mobility, and perceived risk with four studies each, and external influence, innovativeness, and perceived mobility with three studies each.…”