USPS Shipping Error

I get "Authorization failure. Perhaps username and/or password is incorrect." when checking out. I have put my username in but I don't see a place for the Password. Please help

Is there anyone that can help me?

Has anyone ever addressed this? I am a brand new user and I am getting this same message. There is no place to put a password. I have a USPS account, but is there something I am missing?

It took me a bit to figure this out too. It's not very clear, but found some info on the board here that helped me figure it out.

You need to register for a USPS Web Tools account and they will give you a username and password. Don't know why you need a password, as it's not used, but you can enter the username and the zip code you used at signup and it should work. You can go here to register: https://registration.shippingapis.com/

Hope that helps.

Dan