Error Unauthorized when trying to use ZervicePoint PowerShell Management

Problem

When trying to run a get (i.e Get-ZPService) command via the ZervicePoint PowerShell Management I get

get-zpservice : Unauthorized.

At line:1 char:1
+ get-zpservice
+ ~~~~~~~~~~~~~
**    + CategoryInfo          : PermissionDenied: (:) [Get-ZPService], UnauthorizedAccessException**
**    + FullyQualifiedErrorId : Zipper.ZervicePoint.WebApi.PowerShell.GetZPServiceCommand**

Solution

How to get started with ZervicePoint PowerShell Management