---
title: WorldFirst WhatsApp OTP user guide
description: "## 1. Function Overview WorldFirst has officially launched its WhatsApp Business account. The first service is OTP delivery for online transactions. - Where SMS OTP is available, a WhatsApp OTP option will also be offered(e.g., login verification, payment verification, email…"
url: "https://www.worldfirst.com/sg/help-center/onboarding/whatsapp-otp/"
updated: "2026-06-24"
category: Onboarding
---

# WorldFirst WhatsApp OTP user guide

## 1. Function Overview

WorldFirst has officially launched its WhatsApp Business account.
The first service is OTP delivery for online transactions.

- Where SMS OTP is available, a WhatsApp OTP option will also be offered(e.g., login verification, payment verification, email change, sub-operator invitation, approval-rule creation, etc.).
- If the WhatsApp entry does not appear on the transaction page, please continue to use SMS.

[![](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624201953128.webp)](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624201953128.webp)

[![](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624202000286.webp)](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624202000286.webp)

## 2. Pre-use Checklist

| **Check item** | **Requirement** |
| --- | --- |
| Mobile OS | WhatsApp installed and network connected |
| Number format | Must match the admin/operator security mobile number stored in the WorldFirst back-end |

## 3. How to verify the official WorldFirst account

To protect your transactions and avoid fraud, always remember:

- WorldFirst official WhatsApp business account (see image).
- **One-way only**: we only send OTPs; the bank will never ask you to reply with account info, passwords or OTPs.
- **Always verify**: never disclose your OTP to anyone; it expires automatically after the validity period.

[![](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624202008426-586x1024.webp)](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624202008426.webp)

[![](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624202014579.webp)](https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/06/20260624202014579.webp)

## 4. Daily transaction verification flow

- Initiate a payment, transfer or batch payment that requires OTP.
- On the verification page choose “Receive OTP via WhatsApp” (if not shown, switch to SMS).
- Within ~10 s you will receive a 6-digit OTP from the official WorldFirst account on WhatsApp.
- Enter the code on the web/app → confirm → transaction proceeds.
- The code is valid for 5 min; if it expires, request a new one.

## 5. FAQ

| **Issue** | **Solution** |
| --- | --- |
| WhatsApp OTP not received | 1) Check network 2) Ensure number matches back-end 3) Wait 60 s and tap “Resend” 4) If still fails, switch to SMS |
| OTP accidentally deleted | Return to the transaction page and tap “Resend”; no unbinding needed |
| Change mobile number | Log in → Security Center → Update bound mobile number |
| WhatsApp entry not visible in Singapore (SG) | Due to local compliance, WhatsApp OTP is unavailable for payments/transfers/batch payments/withdrawals; please use SMS verification |