Issue with Truck Manifest receiving "509 - Manifest Rejected" message

CSMS # 54270632 - Issue with Truck Manifest receiving "509 - Manifest Rejected" message U.S. Customs and Border Protection sent this bulletin at 12/07/2022 06:21 PM EST CSMS # 54270632 - Issue with Truck Manifest receiving "509 - Manifest Rejected" message CBP is aware that certain Truck Manifests are receiving a "509 - Manifest Rejected" error message. Technicians are aware of the issue and are working on a resolution. A follow-up CSMS will be issued once resolved.