The transition from PostFinance PSP to Checkout Flex
In the constantly changing digital world, the offerings of companies also adapt to the latest technology trends. As part of these dynamic developments, PostFinance has decided to phase out the PSP products Basic, Startup, and Professional by the end of the year. However, this does not mark the end, but rather the beginning of a new era of payment processing: PostFinance Checkout Flex.
Fabrice
Knecht

Message from PostFinance
PostFinance recently wrote to all of its customers to fully inform them of the upcoming transition. For customers, it was therefore a clear signal that they can count on the company's reliability and transparency even in times of change. This proactive communication approach has certainly helped to further strengthen customer trust and loyalty.
Thank you for using PostFinance Basic, Startup or Professional in your online shop. As already communicated, the existing solution will be discontinued as of 31 December 2023 and replaced by the Checkout Flex payment solution. Further information on the discontinuation of the existing solution can be found in the enclosed termination letter.
The new all-in-one payment service providing solution from PostFinance offers you maximum flexibility in the integration of payment methods and the choice of acceptance partners. With the user-friendly Checkout back-office tool, you can also easily manage all settings and online sales in the e-payment module.
For a seamless transition from the existing PSP product to Checkout Flex with the e-payment module, we recommend that you configure the new solution immediately. If you have set up your online shop via a web agency, please involve your contact person in good time.
A summary of the most important steps for the upgrade to Checkout Flex can be found in this booklet. This guide is intended to assist you with setting up the Checkout back-office and configuring the most important payment methods: credit card, PostFinance payment methods, and TWINT.
— PostFinance Message
PostFinance is discontinuing its previous PSP products (Basic, Startup, Professional) by 31 December 2023 and is introducing the more flexible and user-friendly "Checkout Flex" solution instead. This new solution enables easy management of settings and online sales through the Checkout back-office tool. For a smooth transition, it is advisable to configure Checkout Flex as soon as possible and, if applicable, involve your web agency at an early stage.
Interesting facts on the topic
PostFinance is one of the leading payment service providers in Switzerland and has a long history in the financial world.
Checkout Flex was developed to meet the growing needs of the e-commerce market.
Switzerland has one of the highest e-commerce penetration rates in Europe.
With Checkout Flex, customers can pay in their preferred currency.
The system also offers recurring payments, making it ideal for subscriptions.
The transition from traditional payment methods to digital solutions has transformed the business world in Switzerland.
By integrating PostFinance and other payment methods such as TWINT and bank transfer, Payrexx doubled its customer base in a short space of time.
An easy switch from PostFinance to Payrexx
An alternative to the new Checkout Flex solution is switching to the all-in-one payment solution from Payrexx. One of the main reasons why many businesses consider switching to Payrexx is the simplicity of the process. Clear instructions and a dedicated customer support team ensure a smooth transition.
The integration is completed quickly, and you can get started with the system on the very same day. The onboarding process is designed to be short and precise, meaning no valuable time is lost. Another decisive advantage is cost efficiency: no setup fees are charged. This makes switching to Payrexx not only simple, but also economically attractive. With Payrexx, businesses choose a solution that convinces in terms of both user-friendliness and economic efficiency.
The ideal checkout product for merchants
For those considering a switch, Payrexx's checkout product is just the right fit. It was specifically developed for merchants looking for a reliable, efficient, and user-friendly payment solution. Two possibilities are particularly noteworthy:
Merchant API
This interface allows you to connect your business system directly and in a customized manner to the payment service. This means that you have full control over the payment process and can design it exactly according to your ideas and requirements. It is ideal for those looking for an individual solution and who value maximum customizability.
Shop plugins
For those using common e-commerce platforms, integration via shop plugins offers a quick and uncomplicated way to integrate the payment service into their online shop. It requires minimal technical effort and allows payments to be accepted in no time at all.
The online payment market is developing rapidly, and amidst this change, it is of key importance that you always stay up to date. With these integration options, whether through the merchant API or the practical shop plugins, you are optimally positioned to succeed in the digital retail world.
Would you like to convince yourself of Payrexx? Sign up and test all features free of charge for 30 days.

