CSMS 39789921·Operational·September 13, 2019·View on csms.cbp.gov ↗

RESOLVED: Delays processing large ACE Entry Summary (AE) messages

Plain-English explanation

CSMS 39789921 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on September 13, 2019. It carries the official CBP guidance brokers and importers must follow for the topic — "RESOLVED: Delays processing large ACE Entry Summary (AE) messages". CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Message body

Full text as published by U.S. Customs and Border Protection

CSMS #39789921 - RESOLVED: Delays processing large ACE Entry Summary (AE) messages U.S. Customs and Border Protection sent this bulletin at 09/13/2019 03:21 PM EDT Cargo Systems Messaging Service CSMS #39789921 - RESOLVED: Delays processing large ACE Entry Summary (AE) messages The issue that impacted the processing of large Entry Summaries (AE messages) this week has been RESOLVED with the implementation of further performance improvements. Trade partners who submitted later entry summaries that received an ASF (ACE System Failure) error that are still unresolved are requested to retransmit their AE messages. Please contact your assigned CBP client representative if you continue to receive an ASF error. Update your subscriptions, modify your password or e-mail address, or stop subscriptions at any time on your Subscriber Preferences Page . You will need to use your e-mail address to log in. If you have questions or problems with the subscription service, please contact subscriberhelp.govdelivery.com . This service is provided to you at no charge by U.S. Customs and Border Protection . Privacy Policy | GovDelivery is providing this information on behalf of U.S. Department of Homeland Security, and may not use the information for any other purposes. Powered by Privacy Policy | Cookie Statement | Help

Frequently asked questions

What is CSMS 39789921?

CSMS 39789921 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "RESOLVED: Delays processing large ACE Entry Summary (AE) messages". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 39789921 published?

CBP published CSMS 39789921 on September 13, 2019. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Is the CBP CSMS the legally binding instruction?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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