ACE CERTIFICATION EXTENDED Maintenance this evening for MQ Software upgrade, Monday April 5, 2021 @ 5pm ET to 11pm ET

CSMS #46880377 - ACE CERTIFICATION EXTENDED Maintenance this evening for MQ Software upgrade, Monday April 5, 2021 @ 5pm ET to 11pm ET U.S. Customs and Border Protection sent this bulletin at 04/05/2021 04:36 PM EDT CSMS #46880377 - ACE CERTIFICATION EXTENDED Maintenance this evening for MQ Software upgrade, Monday April 5, 2021 @ 5pm ET to 11pm ET There will be an EXTENDED Maintenance in the ACE CERTIFICATION environment this evening from 5pm to 11pm ET for an ACE Infrastructure software upgrade that will improve the system performance for processing electronic MQ messages , inbound and outbound, in the following ACE areas: ACE Import manifests/bills (all modes of transportation) and associated entry filings. QP/WP In-bonds Entry summary (AE) Add and Replace messages The following ABI Queries: Cargo Manifest Query (CQ/C1) Importer/Bond Query (KI/KR) Entry Summary Query (JC/JD) **Trade partners are encouraged to submit these types of messages into the Certification environment starting Wednesday, April 7th , to ensure proper message sends and receipt of responses. The software upgrade to the ACE Production environment is planned for this weekend, April 10th.