Step-2: Assign Permissions to an app
In order to grant permissions to an app, the owner role is required.
Click on Subscriptions
2. Click on your subscription
3. Click on Access Control (IAM)
4. Click on Add → Add role assignment
5. Click on the search box & enter the role name as Reader role
6. Select the role & click next
7. Click on Select Members
8. Enter the App name (which you have created in Step-1 : Create Azure Active Directory app ) & Click Select
9. Click Next
10. Click Review + assign