You need to obtain a Fedex Freight Account number from Fedex. This is in addition to a web service enabled Fedex account.
- Extension installation instructions «HERE»
- Within 'Configuration?Shipping Methods' you should have a shipping method available called "WebShopApps Fedex Freight"
- Navigate to Shipping Methods in Magento admin
- Enter Account Id, Password, Meter Key, Freight Account Id and extension serial
- Enter Payor details and setup origin under Shipping Settings. It's important that you set these properly as otherwise the extension will not authenticate correctly
- Enable other switches as appropriate (recommended you setup a default freight class)
- On each Product listing that you wish to specify the freight class and packaging type enter these under the shipping tab