Step 1: Login to Shopify.com

From there it is really easy, just follow these steps:

  1. From your Shopify admin, go to Apps.
  2. Click Manage private apps, near the bottom of the page.
  1. Click Create a new private app.
  2. In the App details section, enter a name for the private app and a contact email address. Shopify uses the email address to contact the developer if there is an issue with the private app, such as when an API change might break it.
  3. In the Admin API section, select the areas of your store that you want the app to be able to access. 
  4. Check if you give the following permission:
Needed permissions for brainbi

6. Click Save.

The resulting page should show all needed informaiton: