An External Attributes policy must be enabled and configured before users can use the policy for fetching the attributes from external sources.
For assigning a policy to users, you must enable it for Identity Server configuration.
Click Devices > Identity Servers > Servers > Edit > External Attributes.
Select the check box against the policy name and click Enable.
To disable the policy, select the check box against the policy name and click Disable.
To create a new policy, click Manage Policies.
After enabling or disabling policies, update Identity Server configuration on the Servers tab.