title: PayPal - You are not signed up to accept payment for digitally delivered goods
body: <p>I just went from sandbox to live with my PayPal Express Checkout. </p>
  
  <p>But when I try to use it, I get the following error:</p>
  
  <pre><code>You are not signed up to accept payment for digitally delivered goods.
  </code></pre>
  
  <p>My account is a business account and I have added express checkout as a payment option. </p>
  
  <p>What other steps do I need to take, to get this function to work?</p>