Entrepreneurial ventures that combine sustainability and digital innovation are seen as potential solutions to change the status quo and modern way of doing business while addressing urgent environmental and societal problems, such as the climate crisis. However, there is still a lot to learn about these kinds of enterprises and how they deal with their complexities. This study explores the characteristics of sustainable digital entrepreneurs and reveals seven key challenges for this new kind of entrepreneur in Mexico. The findings further the understanding of sustainable digital entrepreneurship, especially within the context of the global south. Additionally, it provides implications for entrepreneurs, their ecosystems, and policy makers.