Oracle EPM Cloud and Using Activity Reports and Access logs to monitor usage

Oracle Enterprise Performance Management Cloud retains Activity Reports and Access Logs for the last 60 days only. 

Oracle recommends that you download and create backup copies on a local computer to analyze them for historical trends.

https://docs.oracle.com/en/cloud/saas/enterprise-performance-management-common/cgsad/6_house_keeping_tasks_monitoring_service_activity_rep_access_logs.html