CSMS 49787634·System update·October 15, 2021·View on csms.cbp.gov ↗

UPDATE ACE Protest Module Performance Issues

Plain-English explanation

CSMS 49787634 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (system update), published on October 15, 2021. It carries the official CBP guidance brokers and importers must follow for the topic — "*UPDATE* ACE Protest Module Performance Issues". 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 #49787634 - *UPDATE* ACE Protest Module Performance Issues U.S. Customs and Border Protection sent this bulletin at 10/15/2021 03:24 PM EDT Cargo Systems Messaging Service CSMS #49787634 - *UPDATE* ACE Protest Module Performance Issues The performance issues with the ACE Protest Module that were reported on Tuesday, October 12, 2021, in CSMS #49748701 have been resolved. Questions or concerns should be directed to Entry Summary, Accounts & Revenue Division (ESAR) at esar@cbp.dhs.gov . 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 49787634?

CSMS 49787634 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "*UPDATE* ACE Protest Module Performance Issues". 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 49787634 published?

CBP published CSMS 49787634 on October 15, 2021. 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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