CSMS #48429282 - Resolved-Emergency Maintenance Affecting ACE EDI processing. U.S. Customs and Border Protection sent this bulletin at 06/07/2021 01:37 PM EDT Cargo Systems Messaging Service CSMS #48429282 - Resolved-Emergency Maintenance Affecting ACE EDI processing. Emergency Maintenance has completed and ACE is processing the backlog of messages. Trade does not need to resubmit messages.