> ## Documentation Index
> Fetch the complete documentation index at: https://developer.z-api.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Send OTP button

> Send a message with a copy-to-clipboard button

## Overview

With this method you can send text messages with a button to copy a value.

<Warning>
  Button sending is currently available, but there are some decisive factors for it to work. For more details check the [Button Status](/en/tips/button-status) topic.
</Warning>

#### Example on WhatsApp

<div style={{ display: "flex", justifyContent: "center" }}>
  <img src="https://mintcdn.com/z-api-8aa3bb40/nNYp_QHy_iUs4_xM/images/send-button-otp-eng.jpeg?fit=max&auto=format&n=nNYp_QHy_iUs4_xM&q=85&s=a85f0d5d442324b4b30d3eac4fd50dc3" width="400" data-path="images/send-button-otp-eng.jpeg" />
</div>

***

## Attributes

### Header

<ParamField path="instanceId" type="string" required>
  Your instance ID. Available in the Z-API panel under **Instances**.
</ParamField>

<ParamField path="token" type="string" required>
  Your Z-API instance token.
</ParamField>

### Required

<ParamField body="phone" type="string" required>
  Recipient's phone number (or group ID for group messages) in DDI DDD NUMBER format. E.g.: 551199999999
</ParamField>

<ParamField body="message" type="string" required>
  Message text
</ParamField>

<ParamField body="code" type="string" required>
  Value to be copied when the button is clicked
</ParamField>

### Optional

<ParamField body="image" type="string">
  Image URL or Base64
</ParamField>

<ParamField body="buttonText" type="string">
  Button text (default: "Copy code")
</ParamField>

***

## Request Body

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "phone": "551199999999",
  "message": "Message text",
  "code": "Value to be copied"
}
```

***

## Response

### 200

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "zaapId": "3999984263738042930CD6ECDE9VDWSA",
  "messageId": "D241XXXX732339502B68",
  "id": "D241XXXX732339502B68"
}
```

### 405

Make sure you are correctly sending the method specification, that is, verify that you sent POST or GET as specified at the beginning of this topic.

### 415

If you receive a 415 error, make sure to add the "Content-Type" header to your request, which in most cases is "application/json".