To enable send and receive on Coinbase, you can contact their Customer Support Helpline at +1-(844)-954-6101 (US) for assistance. Additionally, ensure your account is verified. Once verified, navigate to the ‘Send/Receive’ tab in your Coinbase account. Enter the recipient's wallet address (for sending) or copy your wallet address (for receiving). Always double-check wallet addresses before confirming any transaction to ensure accuracy and security.