When user information to be registered for SNMP authentication is input, an information processing apparatus confirms whether or not user information for MFP authentication is already managed for a user to be registered who is indicated by the input user information. In the case where the user information for MFP authentication is not managed for the user to be registered, the information processing apparatus registers the input user information as user information for SNMP authentication. In the case where the user information for MFP authentication is managed for the user, the information processing apparatus registers information specific to SNMP authentication, i.e. information other than an authentication password, out of the input user information.