Hi Guys,

I am new to oscommerce and want the help.
I have installed osCommerce on my local machine. and using USPS shipping services.To use USPS services,I have created an account with USPS from which
I got my account ID which I set as username for USPS Shipping.and the server is "test".
But on user side on Checkout page I am getting following error for USPS

An error occured with the USPS shipping calculations.
If you prefer to use USPS as your shipping method, please contact the store owner.

I know that to mail to USPS company is necessary to switch from "test server" to "production server".But it even does not run on test server.So I did not mail to usps company.

Could any one help me please to solve this error? What should I do?
Your help will be highly appriciated.

Thanks in advance.