CSMS #68397097 · Updated ACE Entry Summary Error Dictionary Now Available on CBP.gov

Brief takeaway: CBP has updated its ACE Entry Summary Error Dictionary to add a new validation error that blocks post-summary corrections when a CAPE refund is already in process.

What changed: According to the notice, CBP published an updated ACE Entry Summary Error Dictionary that includes a new validation error (Condition Code 864, "PSC NOT ALLOWED – REFUND REQUESTED"). The notice states this error occurs when a filer attempts a post-summary correction (PSC) on an entry for which a Consolidated Administration and Processing of Entries (CAPE) declaration has been submitted, because a CAPE refund is in process.

Who's affected: The notice does not cite specific HTS chapters, product types, or countries of origin. It names filers submitting PSCs on entries with a CAPE declaration and references CBP's IEEPA Refund process; the CAPE tool's first phase launches April 20, 2026, per the notice.

What to review:
- Review whether any planned post-summary corrections involve entries with a submitted CAPE declaration or in-process CAPE refund.
- Confirm with your broker how a CAPE refund request may affect the ability to file a PSC on the same entry.
- Check the updated Error Dictionary in the Supporting Documents section of CBP's CATAIR webpage for the new Condition Code 864.
- Review CBP's IEEPA Refund webpage for information on the CAPE tool rollout.

This is general information, not legal advice and not a compliance determination — confirm specifics with a licensed customs broker or trade counsel.