PTR2 Release Notes_DD_03_03_26

INFORMATIONAL - Delayed Receipt of Data Daylight Savings Time Issue – March 08, 2026

Manifest Mailing System Exception Request Form

Effective April 1, 2026 - The Postal Service is retiring Publication 401 Manifest Mailing System (MMS) used for mail sortation and preparation with hard copy forms and documentation. Affected customers must migrate to Electronic Documentation (eDoc), Full Service, Seamless, and eInduction, for Letters, Cards, and Flats April 1st,, 2026.

Mailers who require a onetime exception to continue using the Manifest Mailing System—due to an inability to meet the deadline to migrate to Full Service, Seamless, or USPS Ship, may do so by submitting their request to their local Manager Business Mail Entry.

INFORMATIONAL - Upcoming Maintenance Change Request - CHG1235463

INFORMATIONAL - USPS Ship Data Feed Update - New Notifications for Duplicate & Unmanifested Packages

March 8 2026 Release Notes

Ancillary Service Endorsement Fact Sheet

Ancillary service endorsements are used by mailers to request an addressee’s new address or the reason mail cannot be
delivered as addressed and to provide the US Postal Service with instructions on how to handle Undeliverable As Addressed
(UAA) mailpieces.

DELIVERY - Military Post Offices Temporarily Suspended Updated

DELIVERY - International Service Suspension Notice

Brewed for Business: The Shipping Mini Café