Checkout Login / Customer Login / Email Code Login / SMS Login

by commercewerk 1440 GmbH

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Downloads: <25

Customers log in at checkout with a login code by email or SMS – no password needed. Account login works the same way. The classic password login remains available in parallel.

Annually €19.90* /month €298.80 * €238.80* /year 20.08% discount In comparison to the regular monthly price

Monthly €24.90* /month Cancelable monthly

Compatible with:

6.5.0.0 - 6.7.16.0

Includes:

Free trial month

The subscription starts with a free trial month during which it can be canceled at any time.

All updates

During the subscription all released updates are included for free

Support from the Extension Partner

In case you have any questions or problems with your extension you can always ask the Extension Partner for help during the subscription.

Description

Highlights

Fewer abandoned carts caused by forgotten passwords
Less typing at login, especially on a phone
Fewer login support requests
More orders through customer accounts
No additional email provider needed, SMS optional

Features

Login codes by email or SMS
SMS through commercewerk SMS, Twilio or Vonage
Customers stay in the checkout flow after logging in
"Email only" mode without the mobile number field
You decide whether email login starts with the login code or the password

Login code suggested above the keyboard on many smartphones
Mobile number input with country selector, formatting and validation
Mobile number can be linked to the customer account for faster logins
Optional: SMS only to mobile numbers already linked to an account
Configurable login code lifetime (5 minutes by default)
Rate limits: 20 seconds before resending, 3 code requests and 3 login attempts per minute
Editable sender name and message text for SMS
Editable legal notice with SMS consent wording; can be switched off
Login form on the account login page, the checkout registration page or both
Separate settings per sales channel

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About the Extension

Demo shop: https://quickauth-demo.commercewerk.de/en
Documentation: https://commercewerk.de/en/docs/shopware/quick-auth/overview

A forgotten password costs you sales exactly where it hurts most: at checkout, when a customer wants to pay. QuickAuth lets your customers log in with a code: they request a login code, receive it by email or SMS, enter it and are logged in – and stay in the normal Shopware checkout until their order is complete. The classic password login remains available alongside it: you add the faster path without taking the familiar one away.

Why a code and not a login link?

A login link sent by email often opens in the email app's built-in browser, or in a different browser from the one the customer started the checkout in. The customer then cannot find their cart or continue the checkout, so the login looks as though it has failed – especially on mobile. A login code avoids that: the customer enters it right where they already are – same tab, same browser, same device. With SMS, the code is often filled in automatically on a smartphone.

Built for the checkout

By default, email login starts with the login code: the customer enters their email address, requests the login code with one click and can switch to the password login at any time. To offer the password login first, switch off the "Start email login with a login code (recommended)" option in the extension settings.
The login form appears on the account login page and on the checkout registration page, where it is expanded by default.
Code entry uses six separate digit boxes, accessible by keyboard and screen reader; a countdown shows when a new code can be requested.

Email or SMS – your choice

Email delivery works without an additional provider, through your shop's normal email setup; edit the login code email under Settings > Email templates (template type "Login code").
SMS is optional and runs through commercewerk SMS (our own service), Twilio or Vonage; you verify the credentials with the "Verify API Credentials" button in the extension settings.
The mobile number field formats the number as the customer types, validates it and offers a searchable country selector; you decide which countries the selector offers.
Customers link their mobile number to their customer account and log in faster next time; they can change or remove the number at any time under "Your profile".
The "Email only" mode hides the mobile number entirely and switches the SMS login off.

What you control

Per sales channel: the login methods ("Email & mobile number" or "Email only") and whether email login starts with the login code.
Whether SMS login codes are limited to known customers, so that an SMS is sent solely to mobile numbers already linked to an account.
The texts in the login form – button, helper line and password link – as editable snippets, per language; plus the sender name and message text for SMS.
The login code lifetime (5 minutes by default), the wait before resending (20 seconds) and the limits for code requests and login attempts (3 per minute each).
The legal notice in the form with its SMS consent wording; you can edit it or switch the whole notice off.

Privacy

Login codes are single-use and expire automatically; they are generated from a secret that is stored encrypted and deleted after a successful login. With SMS, the mobile number is sent to the provider you choose only to deliver the code. In "Email only" mode, no external SMS provider is involved.

Direct support

We build QuickAuth at commercewerk in Munich. Questions, requests or help getting set up? Email support@commercewerk.de – we answer directly, in English and German.

Demo shop: https://quickauth-demo.commercewerk.de/en
Documentation: https://commercewerk.de/en/docs/shopware/quick-auth/overview

Why a code and not a login link?

Built for the checkout

By default, email login starts with the login code: the customer enters their email address, requests the login code with one click and can switch to the password login at any time. To offer the password login first, switch off the "Start email login with a login code (recommended)" option in the extension settings.
The login form appears on the account login page and on the checkout registration page, where it is expanded by default.
Code entry uses six separate digit boxes, accessible by keyboard and screen reader; a countdown shows when a new code can be requested.

Email or SMS – your choice

Email delivery works without an additional provider, through your shop's normal email setup; edit the login code email under Settings > Email templates (template type "Login code").
SMS is optional and runs through commercewerk SMS (our own service), Twilio or Vonage; you verify the credentials with the "Verify API Credentials" button in the extension settings.
The mobile number field formats the number as the customer types, validates it and offers a searchable country selector; you decide which countries the selector offers.
Customers link their mobile number to their customer account and log in faster next time; they can change or remove the number at any time under "Your profile".
The "Email only" mode hides the mobile number entirely and switches the SMS login off.

What you control

Per sales channel: the login methods ("Email & mobile number" or "Email only") and whether email login starts with the login code.
Whether SMS login codes are limited to known customers, so that an SMS is sent solely to mobile numbers already linked to an account.
The texts in the login form – button, helper line and password link – as editable snippets, per language; plus the sender name and message text for SMS.
The login code lifetime (5 minutes by default), the wait before resending (20 seconds) and the limits for code requests and login attempts (3 per minute each).
The legal notice in the form with its SMS consent wording; you can edit it or switch the whole notice off.

Privacy

Direct support

We build QuickAuth at commercewerk in Munich. Questions, requests or help getting set up? Email support@commercewerk.de – we answer directly, in English and German.

Details

Available: English, German
Latest update: 2 November 2026
Publication date: 6 October 2025
Version: 4.0.0
Category: Checkout / Cart process

Resources

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About the Extension Partner

commercewerk 1440 GmbH

See all extensions

Partner Status

Shopware
Extension Partner

Details

Partner since: 2025
Extensions: 2

Support

Based in: Germany
Speaks: German, English
Response time: Very quickly

Requirements and where to start

Requirements: Shopware 6.6 or 6.7 – the extension comes in a separate version for each, and the Shopware Store delivers the matching one automatically. An SMS provider is only needed if you want to offer login by SMS.
After installation, login by login code is already active: the form appears on the account login page and on the checkout registration page, and delivery is handled by email through your shop's normal email setup.
You can find all settings under Extensions > My extensions > QuickAuth > Configure. Every option can be overridden per sales channel.

1. Choose the login methods

Login methods offered to customers – "Email & mobile number" (default) or "Email only". "Email only" hides the mobile number and switches the SMS login off completely.
Start email login with a login code (recommended) – on by default: after entering their email address, the customer requests the login code with one click or switches to the password login via a link. Disable this only if you want to offer the password login first.
Block unregistered mobile numbers – off by default. When active, login codes by SMS go only to mobile numbers already linked to a customer account; if a customer requests a code for an unregistered mobile number, a notice appears and no SMS is sent.

2. Adjust the texts

The request-code button, the helper line and the password link are editable snippets – right in the settings, per language.
Edit the login code email under Settings > Email templates (template type "Login code").
For SMS, set the sender name and the message text; the %otpCode% placeholder inserts the login code.
You can edit the legal notice in the login form (default: consent to receive SMS/RCS messages), change its font size and colour, or switch it off.

3. Set up SMS (optional)

Choose the provider: commercewerk SMS (default), Twilio or Vonage.
Enter the credentials – commercewerk: API token; Twilio: account SID, auth token, region and edge; Vonage: API key and API secret – and check them with the verify button right in the card.
Control the mobile number input in detail: allowed countries, priority countries, country search, flags and automatic formatting as the customer types.
Customers can link their mobile number to their account and change or remove it at any time under "Your profile". When customers register, QuickAuth also links a valid mobile number from the "Phone number" field of the billing address to their new account, unless only email login is offered. An optional tooltip next to the field tells customers they can use the number to log in without a password later.

4. Test and operate

Placement: the account login page and the checkout registration page can be enabled individually; on the checkout registration page the form starts expanded by default.
Login code lifetime: default 300 seconds (5 minutes).
Rate limits: a 20-second wait before resending, at most 3 login code requests and 3 login attempts per minute.
Test: request a login code with an existing customer account, enter it, and continue through the checkout to the final order step.

You can find the complete manual at commercewerk.de/en/docs/shopware/quick-auth/overview.

Uninstalling: with Shopware's Keep user data option, all data remains. Without it, the extension removes its data completely: login codes, linked mobile numbers, pending links, the associated flow and the email template.

Do I need an SMS provider?

No. In "Email only" mode, the login code is delivered through your shop's normal email setup, and the mobile number option is hidden entirely. SMS is optional – through the commercewerk gateway, Twilio or Vonage.

Does password login remain available?

Yes. The password login remains available in parallel; customers can switch to the password login at any time via a link in the form. By default, email login offers the login code first. To offer the password login first, switch off the "Start email login with a login code (recommended)" option in the extension settings.

What changes at checkout?

The login form appears on the account login page and on the checkout registration page – expanded there by default. After logging in, the normal Shopware checkout continues to the final order step; the extension does not change the checkout navigation.

Which texts can I customise?

The button, helper line and password link in the login form are editable snippets, per language. The same applies to the sender name and message text for SMS, the legal notice including the consent wording, and the email template under Settings > Email templates.

Can I restrict SMS login?

Yes, in two ways: you define which countries mobile numbers may come from, and you can restrict login codes by SMS to mobile numbers already linked to a customer account – if a customer requests a code for an unregistered mobile number, a notice appears and no SMS is sent.

What data does the extension process and store?

Email delivery uses the email address; with SMS, the mobile number is sent only to the provider you choose, solely for delivery. The extension stores the encrypted secret the login codes are generated from (deleted after login; the codes themselves are single-use and expire automatically) and the mobile numbers customers link to their customer accounts. Check that your privacy notices match your setup.

What happens on uninstall?

With Shopware's "Keep user data" option, all data remains. Without it, the extension removes its data completely: login codes, linked mobile numbers, pending links, the associated flow and the email template.