2FA (Two-Factor Authentication) is required to trade with other players. Both
trading players must have 2FA enabled on their Epic Games accounts. For more
info check out:
Two-factor Authentication And How To Enable It.
2FA can only be enabled on a full Epic Games account. For more info, check
How Do I Upgrade a Platform Account to a Full Epic Games Account?
If you have already enabled 2FA, be sure to verify your Epic Games email
address. For more info, check out:
How Do I Verify My Email Address?
Let us know how we can help you.