Welltex-Infrarot, Carbon Air XC, Acavallo Newprene – 84 Gamaschen für Training, Stall und Gelände, von Back on Track, LeMieux und Eskadron.
You have copied the placement for the Product Page.
Go back to the App Embeds section, and in the Paypal Advanced Settings, paste the copied value into the Product Page field and click the 'Save' button in the top right corner.
