Go to Setup>>Settings.  (Multilocation companies must go to Setup>>Locations and select the location).

 Under the Integrations option, click on FedEx Integration.

 The FedEx integration window will pop up. Check the Enabled FedEx Integration option and click on Continue, in the confirmation window.

In the drop-down menu, select Test, read the What's this? instructions and enter your test credentials obtained from the FedEx portal. In case you do not have those credentials, read How to Get your Test Credentials in FedEx.

 Go to Order Entry > Add Order. Select the FedEx test customer created, Date and Carrier (it must be "FedEx")

 Save the order information and add a box by clicking on the Add items green button.

Once you click on Add Items, the Inventory window will open.  Fill in the "Qty"  and change the price if needed (You can either enter $0 in the price or enter the landed cost as the price since there were no gain or loss), press the "Enter" key to add the item or click on Add.

Once you have added the required items, close the Inventory window. Click on Save if everything is correct.

This is how your test order should look like. Notice the FedEx Details information below the invoice details. Keep the invoice number for the next process.

Click on Shipping>>Inventory.

Use the available filters to find the order test created in the prior process. 

 Hover the mouse over the warning icon  in the carrier column and click on Change FedEx Details.

The FedEx Integration window will appear. Verify the information and click on Save and Process to finish.

The FedEx Integration window will appear. Verify the information and click on Save and Process to finish.

The information will be sent to FedEx. If the process finishes successfully, a confirmation window will appear with the tracking number. You also will be able to download the labels for the shipment.