(2)The use of that exemption has led to very divergent practices in the application of Delegated Regulation (EU) 2018/389, where some account servicing payment service providers request strong customer authentication every 90 days, others at shorter time intervals, and some have not applied the exemption and request strong customer authentication for every account access. That divergence has led to undesirable friction in the customer journey when using account information services and to a negative impact on the services of account information service providers.