[BUG] Get-PnPServiceHealthIssue only works when providing a specific Identity

[RyanSCaldwell]

issue: When running Get-PnPServiceHealthIssue, without any parameters, the documentation notes it should return all Health Issues. Instead, the following error is shown:

VERBOSE: Acquiring oAuth token for permission scope ServiceHealth.Read.All
VERBOSE: Access token acquired
Get-PnPServiceHealthIssue: Object reference not set to an instance of an object.

If I run the CMDLET on a specific Identity, it works without issue:

Get-PnPServiceHealthIssue -Identity IT925560 -Verbose
VERBOSE: Acquiring oAuth token for permission scope ServiceHealth.Read.All
VERBOSE: Access token acquired

StartDateTime : 11/4/2024 8:00:00 PM
EndDateTime :
LastModifiedDateTime : 11/7/2024 5:01:23 PM
Title : Users can’t access Intune blogs news and the customer success blog from https://intune.microsoft.com
Id : IT925560

Steps to reproduce behavior

Get-PnPServiceHealthIssue
Get-PnPServiceHealthIssue -Identity IT925560

What is the version of the Cmdlet module you are running?

2.4.0

Which operating system/environment are you running PnP PowerShell on?

• Windows

[RyanSCaldwell]

Upgraded from 2.4 --> 2.12 and it's now providing more error information.

WARNING: Failed to parse response from server. Error message: 'The JSON value could not be converted to System.Nullable`1[PnP.PowerShell.Commands.Model.ServiceHealth.Enums.ServiceHealthIssuePostType]. Path: $.value[39].posts[3].postType | LineNumber: 0 | BytePositionInLine: 272354.'.

[jackpoz]

Could you please post the output of calling the endpoint defined at https://learn.microsoft.com/en-us/graph/api/serviceannouncement-list-issues?view=graph-rest-1.0&tabs=http#http-request in your tenant ?

The issue is most likely caused by PostType enum not matching the values specified at https://learn.microsoft.com/en-us/graph/api/resources/servicehealthissuepost?view=graph-rest-1.0#properties .

I created a PR at #4530 to add the missing enum values.