With e-commerce expanding worldwide, not least during the current COVID-19 pandemic, our planet’s consequences and society are becoming more visible. Therefore, it is critical to cultivating a business environment where companies in the digital market integrate sustainable business models. To further understand this area, we conducted a systematic literature study to describe the current knowledge about the challenges and solutions facing sustainable e-commerce and its business models. Based on 32 peer-reviewed articles published within the last three years, we categorised them into five focal areas of sustainability in e-commerce: (1) production, (2) logistics, (3) waste & recycling, (4) business & resellers and (5) the consumer’s perspective. The results show that production should focus on digitalisation to become more intelligent and efficient, e.g., when it comes to energy consumption and decreasing waste. Current literature amplifies the last delivery route as attractive to create sustainability for logistics. The third category results add to the discussion on collecting information on how to use packing sustainably. The results show that businesses and resellers focus on sustainability, implying investments in new technology, changes in behaviour, and innovative business models. One result from the consumer category demonstrates the importance of online information related to sustainability since it affects the customers’ behaviour. Suggestions for future research are to investigate the effects of e-commerce when increasing online product information and focusing on information as an essential aspect of increasing sustainability.