This research aims to study 1) personal factors affecting the performance of Thai commercial bank employees 2) motivation affecting the work performance of Thai commercial bank employees 3) self-development affecting the work performance of Thai commercial bank employees 4) the work performance of Thai commercial bank employees. The population for this research was 162093 Thai commercial bank employees. The sample size of 383 people was determined using Krejcie & Morgan. The data was collected from Google Form questionnaires. The statistics used to analyze the data were frequency percentage mean and standard deviation. The statistics used to test the research hypothesis were T-test one-way analysis of variance the pair test by the Scheffe method and single linear regression analysis statistics. The results showed that most of the samples were female employees between 21-30 years of age a bachelor’s degree single status income in the range of 15001-25000 Baht and a working period of 5-10 years. The respondents had their opinion level of motivation factors happiness factors and self-development factors affecting the work performance of Thai commercial bank employees. It was found that the sample group had the highest opinion level in the overall opinion level. The results showed that the respondents had an opinion level of the work performance of Thai commercial bank employees. It was found that the sample group had the opinion level as a whole at the highest opinion level. The results of hypothesis test 1 revealed that personal factors such as gender age educational level status income and working in different departments had no effect on the performance of Thai commercial bank employees. Statistically significant at the 0.05 level and personal factors such as differences in the working period. Factors affecting the performance of Thai commercial bank employees at a statistically significant level of 0.05 and personal factors such as age education level income working period. When testing the hypothesis classified by aspects the efficiency of work of Thai commercial bank employees differed. Therefore the difference was tested by pair using Scheffe’s method. The results of hypothesis test 2 revealed that motivation affects the performance of Thai commercial bank employees. The correlation coefficient (R) = 0.858 adjusted R^2= 0.753 was statistically significant at the 0.05 level. The results of hypothesis test 3 revealed that self-development affects the efficiency of Thai commercial bank employees. The correlation coefficient (R) = 0.640 adjusted R^2= 0.40 was statistically significant at the 0.05 level.

This research is study on influences effect of decision to use PromptPay system of Thai commercial banks. The purpose of the research is as follows. Study the confidence that effect of the choice of financial transaction services through PromptPay system. Study the marketing mix factors that effect of the decision to use financial services through PromptPay system. This research is to collect data from customer of Thai commercial banks. Thai commercial banks are as follows. Bangkok Bank Public Company Limited. Krung Thai Bank Public Company Limited. The Siam Commercial Bank Public Company Limited. Kasikorn Bank Public Company Limited. and Bank of Ayudhya Public Company Limited. The results showed that most respondents had the following: They are female. They are between 31 and 40 years old. They are single. They graduated bachelor. They are studying at the undergraduate level. They are students. They earn less than 15000 baht per month. Frequency of financial transactions is 1 time per month. They used to transfer money through mobile applications. The reason for using the mobile banking is quick and easy. and Reduce the loss of money and the cost of banking transactions are the factors that affect the choice of use PromptPay system.