What PayPal API Credentials I should use to go live?
<p>I am using PayPal Express Checkout in my project and I am using my Sandbox testing account to test the PayPal in the development environment.</p>

<p>I am using my <code>Business</code> account I get <a href="https://developer.paypal.com/developer/accounts/" rel="nofollow noreferrer">from PayPal website</a>. Now I want to go live,</p>

<p>what should I do before I go live?</p>

<p>Some said that I should <strong>ONLY</strong> remove <code>sandbox</code> from my PayPal links, it didn't seem to work with me.</p>

<p>Others said that I have to create an app, but then they will give me client-ID and Secret.</p>

<p>Where should I place them?</p>

<p>because sandbox testing accounts gives me three API credentials <code>USER, PWD, &amp; SIGNATURE</code></p>

<p>from where I can get my live credentials for <code>USER, PWD, &amp; SIGNATURE</code></p>