To generate a cryptocurrency deposit address on Coinbase Exchange:
Sign in to Coinbase Exchange
Click the Trade tab.
Under Wallet Balance, click Deposit.
Search for and select the asset you’d like to deposit.
Click the deposit method you’d like to use.
Review and select the appropriate destination address.
Copy the wallet address.
Deposit addresses on Coinbase Exchange change every time you generate one for most assets.
Even though the addresses change with every check, all previously generated addresses will always be associated with the account and they can be checked under Crypto Addresses in your Profile
If tokens are sent to an old address, they'll be processed and credited automatically into the corresponding wallet of your default portfolio. For your peace of mind, you can keep note of previously generated addresses and to try a small test transaction to be certain that the old address is still valid.