# Manage emCA Authentication Matrix
On the Dashboard page, click on Application Settings ->Manage Authentication Matrix from sub menu.
You will be redirected to the Set up & Registration page. Refer below image.
Click on "Edit Matrix" button to edit user matrix. Refer below image.
Update minimum and maximum users of each role and click on "Save Changes" button.
You will be displayed a popup for authentication. Refer below image .
Now enter email ID and enter valid token PIN.
Click on “Save” button to save the changes you fill get success message as shown below, otherwise click on “Close” button.
On the Dashboard page, click on Application Settings ->Manage license from sub menu.
