USPS Shipping Module [Support Thread]

[Mattie C]

I got the USPS credentials from the FIRST-TIME SETUP INSTRUCTIONS but can't install or enter the Username or Password.
I installed "usps-USPS_2024_02_14_K11j" and I get an error "The USPS shipping-module is installed, but requires a valid USERID and PASSWORD to receive USPS quotes......." and the box on the right where you install etc. is missing.
This is a new installation using:
Zen Cart v2.0.1
Bootstrap Template Version: 3.7.0
Database Engine: MySQL 5.7.23-23
PHP Version: 8.3.6 (Zend: 4.3.6)