How To Connect With FedEx
First, establish a FedEx Developer account starting here: https://developer.fedex.com/api/en-us/home.html
Within the developer account, request Production access, and record the Production API Key and API Secret Key that is generated for you.
Visit the FedEx Settings screen under Settings -> FedEx Settings:
Enter the following settings and Save Changes:
FedEx API Key - Live = The API Key from FedEx
FedEx API Secret Key - Live = The API SecretKey from FedEx
FedEx Account Number - Live = Your FedEx Account Number
FedEx Environment = Select Live
Note: If desired you can use FedEx's Sandbox environment instead, with FedEx's Developer API keys, but the tracking information will not be useful.