<![CDATA[Digital transformation through the use of Point of Sale (POS) applications has become a crucial element for operational efficiency in the MSME sector, where Lunapos serves as one of the reliable cloud-based cashier solutions. However, initial observations indicate technical obstacles such as slow loading processes and synchronization issues with receipt printer devices, which have the potential to reduce productivity and user satisfaction. This study aims to evaluate the usability level and user satisfaction of the Lunapos application using the System Usability Scale (SUS) method by involving 50 active user respondents. Data was collected through three months of observation, in-depth interviews, and the distribution of standard SUS questionnaires. The test results show that the Lunapos application obtained an average SUS score of 70.05, which falls into the Acceptable category within the Acceptability Range, received a Grade Scale B, and an Adjective Rating at the OK level. These findings indicate that overall, the Lunapos application has met good and effective usability standards to support daily transactions. Nevertheless, continuous optimization of system stability and hardware integration is needed to overcome the remaining technical obstacles, so that the user experience can be comprehensively improved in the future.]]>
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