ACE Dashboard and CBP Technical Support
The status of Customs ACE Messages can viewed here: https://trade.cbp.dhs.gov/ace/dashboard/public/ This can be used to troubleshoot if customs message issues are the result of a CBP side issue.
24/7 CBP Technical Support Hotline is also available if issues arise outside of business hours
(866) 530-4172
During business hours our normal CBP client representative should be emailed: ramon.a.portu@cbp.dhs.gov