Hi everyone! I am using the USPS calculated shipping. But havent been able to offer first class shipping, because it is allowing people to get this option even though the package is weighing over 13 oz.
I need the first class shipping option to remove itself, if the 2 items that the person is purchasing weighs over 13 oz.
How do i do this?

My Shipping/Packaging is:

Title Value Action
Country of Origin United States
Postal Code 54205
Enter the Maximum Package Weight you will ship 50
Package Tare Small to Medium - added percentage:weight 0:1
Larger packages - added packaging percentage:weight 0:0
Display Number of Boxes and Weight Status 0
Order Free Shipping 0 Weight Status 0
Shipping Estimator Display Settings for Shopping Cart 1
Display Order Comments on Admin Invoice 1
Display Order Comments on Admin Packing Slip 1


My USPS Account is:

Which server to use
production

Handling Fee
1.00

Tax Class
Taxable Goods

Tax Basis
Store

Shipping Zone
--none--

Sort Order
0

All Packages are Machinable
False

USPS Options
Display weight, Display transit time

Domestic Shipping Methods
EXPRESS, PRIORITY, FIRST CLASS, PARCEL

International Shipping Methods
--none--

Debug Mode
Off