How can you use WhatsApp without a SIM card?

It is possible to use WhatsApp without a SIM card by using a feature called WhatsApp Business API. This feature is primarily intended for businesses and organizations, but it can also be used by individuals who do not have a SIM card or a phone number.

Here's how to use WhatsApp without a SIM card:

1. Download and install WhatsApp Business app on your phone or computer.
2. Open the app and select "Create a new business account."
3. Follow the prompts to set up your business profile, including your business name, category, and description.
4. When prompted to verify your phone number, select "Don't have a phone number?" or "Verify a business number."
5. Follow the prompts to create a new WhatsApp Business API account. You will need to provide some basic information about your business, such as your business name, address, and website.
6. Once your account is created, you can use it to send and receive messages on WhatsApp without a SIM card.

Note that WhatsApp Business API is primarily intended for businesses and organizations, and it may have some limitations and restrictions compared to the regular WhatsApp app. Additionally, using WhatsApp without a SIM card may require some technical knowledge and setup, so it may not be suitable for all users.