Tech Guides
02/21/2025
ACS™ Electronic Product Fulfillment (EPF) Fulfillment File Access

Learn the different methods of accessing your ACS™ files from EPF.

Tech Guides
01/31/2025
eVS to USPS Ship Migration Tech Sheet

The Postal Service is retiring the electronic verification system (eVS). eVS customers must migrate to USPS Ship or USPS APIs by February 2025. This includes customers using Premium Forwarding Services Commercial (PFSC) and Click N Ship BusinessPro (CNBPro). This document outlines the differences between the two platforms and steps to migrate from eVS to USPS Ship.

Tech Guides
01/31/2025
Guide to USPS Ship for New Shippers
Tech Guides
01/31/2025
Guide to USPS Ship for eVS Shippers
Tech Guides
01/23/2025
Current Mail Growth Incentive- Requesting Postage Credit on a Permit
Tech Guides
12/12/2024
PostalOne! Release 61.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 61.0.0.0

Tech Guides
12/12/2024
PostalOne! Release 61.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 61.0.0.0

Tech Guides
12/12/2024
PostalOne! Release 61.0.0.0 Mail.XML PrePROD WSDLs
Tech Guides
12/12/2024
PostalOne! Release 61.0.0.0 Mail.XML CAT WSDLs
Tech Guides
12/11/2024
Known Issues List 12-11-2024