USPS PTR2 API Known Issues

Modernization of Address Processing with APIs - Q & A

Marriage Mail Incentive FAQs

Marriage Mail is a form of direct mail in which marketing service companies combine or “marry” advertisements (e.g., coupons or sales notices) from multiple companies into one mail piece to reduce the cost of the mailing for individual advertisers. This type of direct mailing product allows businesses to reach targeted customer segments.

2026 Promotions FAQ

Mail Growth Incentives FAQs

Enterprise Payment System (EPS) FAQs

The Enterprise Payment System or EPS allows customers to pay for products and services through an Enterprise Payment Account (EPA) funded as an Automated Clearing House (ACH) Debit or Trust Account. The EPS payment account management provides enhanced security features, centralized balance and account management, and a self-service customer experience.

How to Cancel an Existing PFSC Request

Creating PFSC Requests

PFSC Event-Shipment Status Types

Troubleshooting PFSC Delivery Issues

Troubleshooting PFSC Annual Enrollment Fee Issues

Paying Your PFSC Annual Enrollment Fee

Troubleshooting Address Validation Errors for PFSC

How to Onboard with PFSC

Producing PFSC Reports

Premium Forwarding Service Commercial Fees

Master and Partner MID Use in PFSC

Introduction to Premium Forwarding Service Commercial (PFSC)

Periodicals Application Process FAQ

Periodicals Application Process FAQ

Plus One FAQs

USPS Ship Frequently Asked Questions

USPS Ship Frequently Asked Questions

PTR2 FAQs

Modernization of Address & NCOA Processing with APIs - Q & A

2025 Integrated Technology Enrollment Guide