An information processing system includes: a first information processing apparatus connected to a first network and executing a first workflow; a second information processing apparatus connected to a second network and executing a second workflow; and a third information processing apparatus executing the second workflow in cooperation with the second information processing apparatus. The information processing system includes circuitry. The circuitry stores, in the first information processing apparatus, log information of the first workflow and log information of the second workflow. The circuitry stores, in the second information processing apparatus, the log information of the second workflow. The circuitry displays a log information display screen on the second information processing apparatus, the log information display screen being generated by using at least one of the log information of the second workflow and a pair of the log information of the first workflow and the log information of the second workflow.