I have a doubt. Is Coinbase to coinbase transaction free? Whats the minimum amount in btc that can be transacted from one coinbase account to another?
It is free. Use your recipient's Coinbase registered email and not their BTC address. Be sure to type it correctly.
The minimum amount that can be transferred is....come on you can check this by yourselves once you are now on the Withdrawal page.
Your doubts are now cleared.