title: Paypal payments standard with mobile optimized checkout
body: <p>I am running a Django app that is hooked up to paypal payments standard and that generates encrypted 'Buy Now' buttons. Everything works as it should on desktop, but when I use a mobile device (android and IOS), I do not get sent to the mobile optimized checkout page.</p>
  
  <p>If I go to <a href="https://paypal.com/cgi-bin/webscr?cmd=_xclick&amp;business=bacon@example.com&amp;item_name=Bacon&amp;amount=5" rel="nofollow noreferrer">this non-encrypted test page</a>, I actually get the mobile checkout page. As soon as I change that fake business email to my real one, I only get the desktop page.</p>
  
  <p>This leads me to believe I have some kind of configuration issues in my merchant account, as opposed to an issue with encrypted buttons.</p>
  
  <p>I looked at the documentation on <a href="https://www.x.com/developers/paypal/products/mobile-paypal-payments-standard#usecases" rel="nofollow noreferrer">x.com</a>. They mention that the mobile checkout page is not compatible with these use cases:</p>
  
  <ul>
  <li>Instant Update API</li>
  <li>Buyer Supplied Price, Desc, Qty</li>
  <li>Profile Based Shipping &amp; Tax Discounts</li>
  <li>Payment Type: Auth, Order</li>
  <li>Inventory Management</li>
  </ul>
  
  <p>I originally had shipping rules, so I deleted those. I don't think I have any of the other things enabled, but its hard to tell seeing as these unsupported use cases are really vague. I've also read <a href="https://stackoverflow.com/questions/9538548/mobile-optimized-checkout-for-paypal-website-payments-standard">this</a> SO post, and I have disabled my tax rules, but it did not fix the issue for me.</p>
  
  <p>Does anyone have experience with this? Is there a way to force the mobile version of the checkout page, using paypal payments standard?</p>