title: Braintree in Sandbox with Javascript SDK tokenizeCard return "Unable to tokenize card."
body: <p>I am using Nodejs + javascript SDK, in which I am creating a new customer using predefined customer ID, which is working fine.</p>
  
  <p>Now, using the same customer Id, I am generating a token at the backend and send it to the client. Now at client I am running .</p>
  
  <pre><code>    var card = {
      number: '4111111111111111',
      cvv: '832',
      expirationMonth: '10',
      expirationYear: '2020',
      cardholderName: 'Ankur Agarwal',
  
      billingAddress: {
        postalCode: '560076'
      },
    };
  
    var client = new braintree.api.Client({clientToken: clientToken});
    client.tokenizeCard(card, function (err, nonce) {
  
  
    // Got Error "Unable to tokenize card"
  
    })
  </code></pre>
  
  <p>Here is the http response it originally got from the server.</p>
  
  <pre><code>/**/callback_json1({"error":{"message":"User does not have the required permissions for this action"},"fieldErrors":[],"status":403})
  </code></pre>
  
  <p>I have enabled the API access for the account in the sandbox</p>