The urgency of this research is driven by the low financial literacy and adoption of digital record-keeping among MSMEs in Konawe Regency, which results in unmeasured cash flow management and difficult access to formal financing. This phenomenon hinders business sustainability amidst the competitive digital market. This study aims to develop and validate a technology-based, adaptive Sustainable Financial Management Model for local MSMEs. UsingSequential Exploratory Mixed MethodThe initial stage involved a qualitative exploration of barriers to technology adaptation using NVivo 12 on 12 key informants. Next, quantitative validation was conducted through model testing with SmartPLS 4 (SEM) to measure the effect of the recording system on significantly increasing revenue in a sample of 100 MSMEs in Konawe Regency. The results of the NVivo analysis identified three main clusters of barriers: technology anxiety (tech-anxiety), local feature limitations, and infrastructure instability. Meanwhile, the SEM-PLS test results prove thatTechnology-Based Record-Keeping Systemshas a positive and significant effect on Sustainable Financial Management, and Sustainable Financial Management has a significant effect on Increasing Business Revenue. Sustainable Finance acts as a strong partial mediator. Strategically, this research supports the 3rd and 5th Asta Cita Programs related to strengthening the people's economy through digitalization and contributes to SDGs points 8 and 9.