To request your test credentials, navigate to FedEx Web Services > Develop and Test, and click the "Get your test key" button.
Fill out the application registration form, and you will be given a Developer Test Key, Test Account Number, and Test Meter Number. Your Test Password will be emailed to you.
You can use these test credentials to execute FedEx Choreos against the FedEx Testing Environment. Note that you'll set the Endpoint input to "test" when using test credentials.
To apply for production credentials, you'll need a FedEx account. If you don't already have one, you can sign up here.
Once you have a FedEx account, you can obtain an account number by navigating to My Profile > Account Management > Add an account from the FedEx website.
When you're ready to apply for your production credentials, navigate to FedEx Web Services > Move to Production from the FedEx developer site, and click the "Get Production Key" button.
When filling out your application registration form, you'll be asked for your FedEx account number that you created in the previous step.
After filling out the registration form, you will be given an AuthenticationKey and MeterNumber that can used to access the production web service. Again, your production Password will be emailed to you.
Lastly, when running Choreos in the production environment, remember to set the Endpoint input to "production".