Hello, I've been using osCmax for a decade, but having trouble with their USPS module, I thought I'd try osCommerce. Install went very easily, then I enabled the default USPS module and configured it. (Funny, osCmax didn't ask for the USPS password, but osCommerce does, so I entered it). Now, when I try a checkout with a domestic address, I get "Shipping is currently not available for the selected shipping address." Obviously, a configuration mistake, but I have no idea what to do. I have it set to Shipping Zone "none". I do have 2 tax zones set up, has that somehow messed up the shipping? This is osCommerce 2.3.4.1 just downloaded on 1/14/2018.
Anyway, if I need to install an add-on for this, can somebody point me to the right one(s)? There seem to be a LOT of add-ons for USPS.
I need to be able to ship domestic priority and priority international, at least, with insurance.
Thanks very much,
Jon