Disclosed are methods, systems, and non-transitory computer-readable medium for automatically testing and applying codes to electronic shopping carts. For instance, the method may include: monitoring a browsing session of a user on an e-commerce website; determining whether a trigger condition is present based on the monitoring; when the determining determines the trigger condition is present, automatically performing a code test process for a first set of codes to obtain a first test result, the first set of codes being one or more codes among a plurality of codes for the e-commerce website; and upon completion of the code test process for the first set of codes, displaying a first menu, the first menu including information corresponding to the first test result.