title: Stuck with PHP Square API - AUTHENTICATION_ERROR
body: <p>I want to use Square API for a project in order to push generated orders in an existing Square POI.</p>
  
  <p>To do that I need to use the Checkout API with my personal app access token generated on the square dev portal but it keep telling me I do have insufficient permissions for this actions!</p>
  
  <p>API Answer</p>
  
  <p><img src="https://i.stack.imgur.com/Ucvzq.png" alt="API Answer"></p>
  
  <p>API CALL</p>
  
  <p><img src="https://i.stack.imgur.com/6yV4Y.png" alt="API CALL"></p>
  
  <p>Square Doc</p>
  
  <p><img src="https://i.stack.imgur.com/J2Q8C.png" alt="Square Doc"></p>
  
  <p>Thanks for your help :)</p>