Please note that all external deposits will first be deposited into the Default Portfolio. Once the funds have been credited to your Default Portfolio, you can then perform a transfer from your Default Portfolio to other portfolios.
To fund other portfolios from your Default Portfolio on Coinbase Exchange:
Sign in to Coinbase Exchange
Click the Portfolios tab.
Under your Default Portfolio, click Withdraw.
Search for and select the asset you’d like to transfer to your other portfolio.
Click on “Coinbase Exchange Portfolio”.
Choose your “From” and “To” and click Withdraw.