Configuring the payment module
In the Magento administration panel:
- Go to Magento administration panel and click System > Configuration.
- Then click on SALES > Payment methods
- If your Magento installation has several websites, shops or views, change the Current configuration scope in the upper-left corner to the desired configuration.
- Click to expand the PayZen section.
- If you have installed an older version of the PayZen (payzen) payment module, click Reset to take into account the new module features.