When creating a international shipping label using FedEx, you might encounter this error.
Orders of any dollar value to Russia, China, or Venezuela
As of June 29th, all shipments (of any dollar amount) to Russia, China or Venezuela now require you file EEI with the state department. Once you have your EEI code, set it in the tariff number column of your customs form. In some cases, you may still need to file this shipment on FedEx.com or in FedEx Ship Manager.
Specially Regulated Products
This order may contain specially regulated products on the Commerce Control List (CCL) with an Export Control Classification Number (ECCN), other than EAR99, being shipped to the People’s Republic of China, Hong Kong SAR China, Russia or Venezuela. https://www.fedex.com/en-us/shipping/electronic-export-information.html
To determine if your items are on the CCL and classified under an ECCN, or to determine if your export is eligible for a license exception, please contact the Bureau of Industry and Security (BIS) at:
Outreach and Educational Services Division: 202.482.4811
Western Regional Office: 949.660.0144
Northern California Branch: 408.998.8806
or Online here. https://www.bis.doc.gov/index.php/licensing/commerce-control-list-classification
Incorrect tariff numbers (too short/too long)
Another cause of this error may be an incorrect number of digits in your tariff numbers which get mistakenly qualified as an EEI/FTR number instead of a tariff number by FedEx's systems.