PostFinance Checkout
In this article, you will learn how to add PostFinance Checkout as an external payment provider in your Payrexx account.
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In this article, you will learn how to add PostFinance Checkout as an external payment provider in your Payrexx account.
Last updated
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However, if you still wish to use PostFinance Checkout, this guide will explain how to proceed.
PostFinance Checkout is an online payment solution from PostFinance that allows you to offer your customers payment options with Visa, Mastercard, as well as Swiss payment methods such as PostFinance Card, PostFinance E-Finance, and TWINT.
to PostFinance Checkout
with PostFinance Checkout
PostFinance Checkout
PostFinance Checkout
✅ One-time payment
✅ Refund
❌ Partial refund
❌ Recurring payments (Subscription)
❌ Tokenization
❌ Pre-authorization
Log in to your PostFinance Checkout account.
Create a new space and name it after your shop.
Navigate to Payment / Payment methods / E-Commerce and configure the desired payment methods:
Navigate to Settings > Integrations and activate the "Payrexx E-Commerce Tools" extension by clicking the yellow button:
Follow the instructions in the setup wizard and generate the three security keys.
Make sure to securely store these three security keys, as you will need to enter them in Payrexx at a later step.
Once the setup wizard is complete, the PostFinance Checkout test mode will be ready:
Navigate to Payment Providers in the main menu of your Payrexx account.
Click on "Show" under "Credit cards and debit cards".
Click on "Setup" next to PostFinance Checkout:
If you do not yet have a corresponding account with PostFinance, click "Yes." If you already have an account, click "No, not now":
If you clicked "Yes," you will be redirected to PostFinance, where you can create an account. If you clicked "No," you can make the desired settings in the following window:
Payment methods: Activate the desired payment methods by checking the corresponding boxes.
Currencies: Define the currencies you want to accept payments in.
Productive account settings: Leave these fields empty for now.
Sandbox account settings: Copy the Space ID (four-digit number after the name of the space), the application user ID, and the authentication key from the test mode (sandbox) in PostFinance Checkout into the corresponding fields.
Click "Save" to complete the configuration.
The test mode for PostFinance Checkout is now activated. In the following article, you will learn how to test the payment process:
After completing the tests, you can activate the productive mode for PostFinance Checkout.
After completing your tests, you can activate the payment solution in productive mode (live mode).
Log in to your PostFinance Checkout account.
Navigate to the Contracts section in the menu and finalize a contract for live payments.
In the Mode field, select "Live".
Copy the Space ID, Application User ID, and Authentication Key for live mode from your PostFinance Checkout account into the Productive Account Settings fields.
The setup of PostFinance Checkout as an external payment provider is now complete.
In the Payrexx checkout, the customer selects either PostFinance Card or PostFinance E-Finance:
The customer is redirected to the PostFinance website, where they choose whether to pay with the PostFinance App or with PostFinance Card:
The customer follows the instructions and completes the payment.
Postfinance Card
Postfinance E-Finance
TWINT
Mastercard
Visa
PostFinance Checkout is exclusively available to merchants from Switzerland.
Make sure you to Payrexx before you start.
Mode: Enable the for PostFinance Checkout.
Repeat the steps described in the section, with the following adjustments:
