Recently, Perplexity introduced a new feature called 'Internal Knowledge Search', which allows its Pro and Enterprise Pro users to query both internet information and their internal databases on a single platform. This new functionality aims to enhance work efficiency for enterprises, enabling users to more conveniently access the information they need. However, it is important to note that users can only upload documents they deem important to the platform, and the Internal Knowledge Search feature will be limited to these uploaded documents.