The present invention discloses a cloud-based digital system for controlling access to digital trading functions on a digital trading platform. The system is implemented on a cloud-based computing infrastructure that includes a processor and memory, and a database for storing user state variables. The processor executes a user state parameter management module to automatically update the user state variables based on the detection of user interactions processed by the system and recorded in the database. The system further includes an access validation logic module that maps the values ​​of the user state variables to access prerequisites for each digital trading function and compares the current values ​​of the user state variables with the mapping to generate a validation output. Based on the validation output, the processor executes an interface configuration module to enable or disable digital trading function control elements displayed on the user's device in real time, so that function execution requests are limited to functions that satisfy the status prerequisites. With this architecture, access control is performed as a centralized data processing operation at the database-based application layer, so that access changes follow updates to user state variables without manual role changes.