WooCommerce is a free plugin for WordPress, which supplements the content management system with the functionality of an online shop. It has been downloaded more than 15 million times in total, making it one of the most popular WordPress plugins.
Download the WooCommerce plugin. Navigate to plugins in your WordPress back office and choose Install:
Look for the "Payrexx" plugin and click install now:
Activate the installed plugin:
Under "Woocommerce > Settings > Payments > Payrexx" you get to the configuration.
The following information is required:
The title that should be displayed during checkout.
Instance Name: You need to enter the name that you write before .payrexx.com.
Do not forget to check "Enable Payrexx" to activate Payrexx.
The API security key - you will find it in your Payrexx account (see the next step).
Navigate to "API & Integration" in your Payrexx administration. You can now add WooCommerce. To do this, select "WooCommerce" under "Add E-commerce Integration".
Now configure the plugin. Enter the address of your shop under "Enter shop address". Here you will also find the API key.