The policy manager can be accessed within the customer GRC experience. Inside a customer GRC review you can access the policy manager one of two ways:
a. [GRC} > Documents > Policy
b. [GRC] > More > Policies
You will then enter the policy manager
To add a policy from the Global Policy Maanger click add policy.
This will open the Global Policy Manager allowing you to select the policies you wish to use and managed with the client.
Once chosen they are accessible for use.
See related articles
How to edit you customer policy
How to send for customer approval
How to send for end user signature.