# Zero-Click Authentication Template

The Zero-Tap Authentication Template allows your users to receive one-time passwords or codes via WhatsApp without leaving your application.

When a user in your app requests a password or code and you provide that password or code using the Zero-Tap Authentication Template, the WhatsApp client simply broadcasts the included password or code, which your app can capture immediately using a broadcast receiver.

From the user's perspective, they request a password or code in your app, and it automatically appears in your app. If your app users happen to be viewing messages in the WhatsApp client, they will only see a message displaying the default pinned text: *\<code> is your verification code.*

Like the One-Tap Autofill Button Authentication Template, when the WhatsApp client receives a template message containing the user's password or code, we perform a series of eligibility checks. If the message fails this check and we cannot broadcast the password or code, the message will display a One-Tap Autofill Button or Copy Code button. Therefore, when you create a Zero-Tap Authentication Template, you must include One-Tap Autofill and Copy Code buttons in the post body payload, even if the user may never see one of the buttons.

<figure><img src="/files/6dzHi9eCslCxlLhi60TX" alt="" width="563"><figcaption></figcaption></figure>

#### Limitations <a href="#limitations" id="limitations"></a>

Zero-Tap is only supported on Android. If you send a Zero-Tap Authentication Template to a WhatsApp user with a non-Android device, WhatsApp will display a Copy Code button.

URLs, media, and emojis are not supported.

## **Template Creation**

### **Example Request Creation via API (Copy Code)**

{% embed url="<https://docs.ycloud.com/reference/whatsapp-template-creation-examples#zero-tap-authentication-template>" %}

### Manually Create via [YCloud Console](https://www.ycloud.com/console/#/app/whatsApp/template)

{% content-ref url="/pages/XxgpY4qxMvM1NrPUeoEj" %}
[Create Template](/help-center/whatsapp-accounts-management/template-management/create-template.md)
{% endcontent-ref %}

## **Sending Authentication Template Messages**

Use YCloud [WhatsApp API](https://docs.ycloud.com/reference/whatsapp_message-send-directly) to send authentication template messages.

Please note that if you are sending an authentication template with a One-Tap Autofill Button, you must first initiate a handshake between your app and WhatsApp Messenger or WhatsApp Business. See the handshake below.


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