> ## Documentation Index
> Fetch the complete documentation index at: https://help.storetalk.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign in with WhatsApp

> Let customers sign in to your website or app with their WhatsApp number — like “Sign in with Google”, with the code coming from your own WhatsApp number.

**Sign in with WhatsApp** adds a **“Continue with WhatsApp”** button to your website or app, next to
buttons like *Continue with Google* or *Continue with Apple*. Customers sign in with the WhatsApp number
they already use — no password, no email, no SMS.

Meta doesn't offer a “Login with WhatsApp” button for websites. StoreTalk fills that gap: it sends the
customer a one-time code **from your own WhatsApp number**, checks it, and tells your website who signed in.

## How it works

```
Customer taps “Continue with WhatsApp” on your website
        ↓
Enters their WhatsApp number on the StoreTalk sign-in page
        ↓
Gets a 6-digit code on WhatsApp — from YOUR business number
        ↓
Enters the code (first time only: agrees to share their number with you)
        ↓
Back on your website, signed in with a verified WhatsApp number
```

Next time, on the same phone or browser, they just tap **Continue as +91 98•••• 3210** — no new code.

## What you get

> [card] Easier sign-in
>
> Almost every customer in India already has WhatsApp. No passwords to forget, no email to confirm.

> [card] Verified numbers
>
> Every signed-in customer has proved they own the number — no fake or mistyped numbers.

> [card] Customers in your inbox
>
> Each sign-in creates or updates the customer in **Contacts**, linked to their WhatsApp conversation.

> [card] Your brand
>
> The code comes from your WhatsApp number and the sign-in page shows your business name.

## Who can use it

Sign in with WhatsApp is available to businesses that have:

1. **Their own WhatsApp Business account connected to StoreTalk.** Codes are always sent from your own
   number — never from the shared StoreTalk number. If your business uses the shared StoreTalk number (or
   your own number on StoreTalk's shared account), connect your own WhatsApp Business account first.
2. **An active plan** — any paid plan, or an active free trial.

> [!NOTE]
>
> If either of these stops being true (for example, you disconnect your own WhatsApp account), your
> websites are **suspended** and customers can't sign in. They resume automatically once you're eligible
> again. Codes are never switched to the shared StoreTalk number.

## What it costs

Each code is a WhatsApp **authentication message**, which Meta charges to **your** WhatsApp Business
account at its authentication rate. StoreTalk doesn't add a fee. Settings shows an **estimate** of these
Meta charges for the last 30 days.

Customers who tap **Continue as …** don't get a code, so those sign-ins cost nothing.

## Works with your website and apps

* **Websites** — any site: WordPress, Shopify custom apps, Next.js, Laravel, or your own code.
* **Mobile apps** — iOS and Android apps, using the phone's secure browser sheet.
* **Standard technology** — it's OpenID Connect, the same standard behind “Sign in with Google”, so
  your developer can use the libraries they already know.

## Next steps

> [card] [Set it up](https://help.storetalk.app/sign-in-with-whatsapp/set-up.md)
>
> Register your website or app in Settings.

> [card] [What customers see](https://help.storetalk.app/sign-in-with-whatsapp/customer-experience.md)
>
> The sign-in steps, consent and “Continue as”.

> [card] [Developer guide](https://help.storetalk.app/sign-in-with-whatsapp/developer-guide.md)
>
> Add the button and handle the sign-in.

> [card] [Security, limits & FAQ](https://help.storetalk.app/sign-in-with-whatsapp/security-and-limits.md)
>
> How abuse is blocked, limits, and troubleshooting.


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