New Feature Announcement: PowerShell support of Allow/Block guest access based on Domain list

Hi Rob,

Thank you for the information, I've got PS 5 and now getting a different error message.

Setting AllowedDomainList for B2BManagementPolicy
New-AzureADPolicy : Cannot bind argument to parameter 'Definition' because it is an empty collection.
At D:\dlp\Set-GuestAllowBlockDomainPolicy.ps1:325 char:35
+     New-AzureADPolicy -Definition @policyValue -DisplayName B2BManage ...
+                                   ~~~~~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [New-AzureADPolicy], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorEmptyCollectionNotAllowed,Microsoft.Open.MSGraphBeta.PowerShell.NewPolicy
New AzureAD Policy:
Cannot index into a null array.
At D:\dlp\Set-GuestAllowBlockDomainPolicy.ps1:330 char:1
+ PrintAllowBlockedList $currentpolicy.Definition[0];
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : NullArray