1. Inside your n8n workflow, click the 'Add' button to create a new step.
2. Following that, go to the right-hand panel and click 'Human Review'.
3. Browse the list of apps, then choose 'WhatsApp Business Cloud'.
4. Now, it's time to set up the selected node. To get started, click the 'Credentials' menu and choose the WhatsApp account you wish to use.
5. As for the Resource and Operation, make sure that the default configurations are set to 'Message' and 'Send and Wait for Response'.
6. Following that, click the 'Sender Phone Number' menu and choose the phone number you wish to use.
7. Head over to the next input field, then enter the phone number of the intended recipient.
8. Prepare your message afterwards and then type it into the provided input field.
9. Following that, choose the type of response you want to receive and configure the corresponding settings based on your preference.
10. If you wish to personalize the node further, click 'Add Option' and make your desired configurations.
11. Finally, click 'Execute Step' to activate this node in your n8n workflow and send the WhatsApp message, and wait for the corresponding response.