CSMS # 55798793 - Resolved - Legacy ACE connecting issues due to ACE internal networking issues. U.S. Customs and Border Protection sent this bulletin at 04/06/2023 12:19 PM EDT Cargo Systems Messaging Service CSMS # 55798793 - Resolved - Legacy ACE connecting issues due to ACE internal networking issues. The below issue is now resolved. Users connecting issues to Legacy ACE Applications now resolved.