access_denied_insufficient_permissions

Hi Andre, 

The main reason for the admin approval step for JWT applications is for security. JWT apps can potentially have wide ranging permissions to access all data / users in an enterprise, so to prevent test applications from inadvertently causing harm to the data in the enterprise that admin step is placed. We've been actively working over the last several quarters to make the approval process easier, but it does still require admin involvement. An option to avoid this is to use the OAuth 2 flow, which will allow Box users to sign in to your applications so you can access their data directly. This does not require admin approval.

I am getting the same error when trying to access a folder. Our organization is planning on using box as their document management system, but it depends on its successful integration into our system. I have created a custom app. I have authorized the app from my admin account. I have added the developer account as a collaborator. I am still unable to view contents of a folder.

{"type":"error","status":403,"code":"access_denied_insufficient_permissions","help_url":"http:\/\/developers.box.com\/docs\/#errors","message":"Access denied - insufficient permission","request_id":"nzwa06grpdli7yob"}

I too got same error when trying to access create folder, Upload file API via Postman.

Thanks in advance for your comment for this issue.