SharePoint 2013 - Secure Store Service creation of new key

If you create a new key for the secure store service in sharepoint central administration and you get an error when you try to create it.
Keep in mind that this only works with the SharePoint pool admin. So start an instance of internet explorer with the admin user and try again.

AX - Client and Server Configuration - Registry

Sometimes you need to modify client or server configuration directly within the registry. Therfor you need to navigate to the following nodes:

AX Server Configuation:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Dynamics Server\"Ax Version"\Configuration

AX Cleint Configuration:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dynamics\6.0\Configuration

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Dynamics\6.0\Configuration