How to register user as an insights analyst role in facebook app:

Step1:

First client open his application and click ‘edit application’.

Step2:

now click role link from left panel

Step3:

Type Email id/username of insights role user.

Step4:

Now user has been added but not active. The target user will get notification on his facebook profile about he is added as an insights user to that application.

Step 5:

When you Click notification you will get below information and now click developer request.

Step 6:

Now click confirm button and notification will send to client about you have accepted request.