Is there a place to add an existing account for the USPS? I see REGISTER with USPS, but we already have an account, and the USPS knows this when I tried to make a new one. I don't see where to put the pass word in anywhere, for an existing account. I hope that all make sense. I would like to add USPS to the shipping options.
After you apply to the USPS, you will receive an email from them with your username. In this email will be a couple of lines about how to switch your profile to allow you access to the production server. Until you follow this step you will receive an error in checkout about not being authorized on the server. Remember to mention to USPS that the set up is "pre-tested" and you are using Ecommerce Templates.