# Overview

What is OTP product?

The OTP product provides professional dual-channel verification code delivery services via SMS and WhatsApp, ensuring the security and reliability of your users' critical processes such as login and transactions.

**Dual Channel Options**

SMS Verification Codes: Leveraging carrier networks for broad coverage and strong adaptability.

WhatsApp Verification Codes: Delivered via the internet with high delivery rates and cost-effectiveness. You can quickly utilize our shared channel without needing to set up your own WhatsApp Business account.

**Core Advantages**

* Delivery Guarantee: Dual-channel options enhance delivery reliability.
* Global Coverage: Supports sending to users in multiple countries.
* Rapid Integration: Provides a simple API to help you launch quickly.
* Real-Time Monitoring: Offers sending status and delivery reports.

## Platform Test Send

You can test sending SMS verification codes or WhatsApp verification codes on the OTP product page of the InnoPaaS platform. Click “OTP-Overview” to enter the test sending process.

Step 1: Send Verification Request: Enter recipient information, select the sending method (SMS, WhatsApp), language, Sender, and the verification code you want to test and click Send.

<figure><img src="https://2999845799-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCJHnirvoJ8SyRLQfOW4Z%2Fuploads%2FQzLt41nHCDcHzkZXpbkf%2Fimage.png?alt=media&#x26;token=259e236e-7f90-4b2b-93f6-c0ff54a17a22" alt=""><figcaption></figcaption></figure>

Step 2: See verification response

<figure><img src="https://2999845799-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCJHnirvoJ8SyRLQfOW4Z%2Fuploads%2FyvN5ZWg8uq0EuHsaERaR%2Fimage.png?alt=media&#x26;token=9e1b3653-7561-4678-9aa1-8c851f0bc100" alt=""><figcaption></figcaption></figure>

Step 3: Check Delivery Report

<figure><img src="https://2999845799-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCJHnirvoJ8SyRLQfOW4Z%2Fuploads%2FjoonPxNWv90UcLJpt6E1%2Fimage.png?alt=media&#x26;token=ea83bde6-88fe-4768-ba9d-6e9f412621c4" alt=""><figcaption></figcaption></figure>

## OTP Product API Interface Documentation

Please refer to:

{% content-ref url="<https://app.gitbook.com/s/TjPy9fKSkRxSoNbS4f9T/otp-api>" %}
[OTP API](https://app.gitbook.com/s/TjPy9fKSkRxSoNbS4f9T/otp-api)
{% endcontent-ref %}