title: How can I control the language displayed in the Paypal Sandbox?
body: <p>I'm testing my website payment solution with Paypal Express Checkout, but whenever the customer is taken to the PayPal payment page (in the paypal sandbox), the page displays in English.  How can I control what language is displayed?</p>
  
  <p>On my website I have a language selector and so I do have access to the ISO code of the current language being used on my site.</p>