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An ABI "AX" REJECT on a quota entry summary: which cause is impossible?

April 2026 examQuotaQuestion 29 of 80

You are a licensed customs broker and have submitted Entry Summary data through the Automated Broker Interface (ABI). After performing preliminary data validations, the system sends you an "AX" type message with a REJECT status. Which of the following could NOT have resulted in this rejection?

How to get there

ACE runs preliminary quota validations on every entry summary. The Business Rules list exactly which events trigger a REJECT:

Option C turns the first trigger around: the entry type is for quota and quota is available. That's the normal, passing case, so it can't cause a reject. The answer is C.

Why the other choices are wrong

A) Incorrect licenses, visas or certificates: listed as a reject trigger.
B) Quota full, expired or closed: listed as a reject trigger.
D) Quota not yet opened: listed as a reject trigger (alongside "banned").
Tip
Message types: SX is for entries, AX for entry summaries. Quota at or above the threshold produces a WARNING, not a reject. A passing entry summary gets AX or UC with "quota waiting to be processed."

Source: ACE Entry Summary Business Rules and Process Document (Trade External v11.0), Section 7.16.

CBP answer key: Answer C · ACE BRPD Section 7.16Source: CBP past exams ↗