An information processing system implements a receiving unit receiving a request including app identification information, first flow identification information, information related to electronic data used in a first sequence of processes from one apparatus among from at least one apparatus coupled to the information processing system, and a process executing unit causing each program of the at least one program identified by program identification information defined by first flow identification information included in the request in association with the app identification information included in the request received by the receiving unit to be executed according to an execution order defined in the first flow information, and, in response to the error occurring in the first sequence of processes, causes the each program to be executed in the execution order defined in the second flow information to execute the second sequence of processes.