CSMS # 54276664 - Resolved - Issue with Truck Manifest receiving "509 - Manifest Rejected" message U.S. Customs and Border Protection sent this bulletin at 12/08/2022 09:44 AM EST Cargo Systems Messaging Service CSMS # 54276664 - Resolved - Issue with Truck Manifest receiving "509 - Manifest Rejected" message The Issue reported in CSMS #54270632 regarding Truck Manifests receiving a "509 - Manifest Rejected" error message is now resolved.