ACE Modernized Portal Production Maintenance Window on 04/11/2022 from 9:00pm to 04/11/2022 11:00pm EST

CSMS #51549187 - ACE Modernized Portal Production Maintenance Window on 04/11/2022 from 9:00pm to 04/11/2022 11:00pm EST U.S. Customs and Border Protection sent this bulletin at 04/08/2022 10:57 AM EDT CSMS #51549187 - ACE Modernized Portal Production Maintenance Window on 04/11/2022 from 9:00pm to 04/11/2022 11:00pm EST ACE Modernized Portal Production Maintenance Window on 04/11/2022 from 9:00pm to 04/11/2022 11:00pm EST. You may be unable to access the Modernized Portal during this time. If after the window you are unable to access the portal, please close your browser, clear your cache, and try again.