Set-AzAlertProcessingRule non-descriptive error when passing inputobject using get-AzAlertProcessingRule

[Pl4nky]

Description

When passing an alert processing rule from get-azalertprocessingrule to set-azalertprocessingrule via inputobject, a non-descriptive error is returned referencing a parameter that does not exist (not output by get-azalertprocessingrule nor in the relevent documentation for these cmdlets).

Set-AzAlertProcessingRule: Value cannot be null. (Parameter 'value')

Issue script & Debug output

PS> $rules = Get-azalertprocessingrule

PS> $rules[0]

Name                     Enabled LastModifiedAt         LastModifiedBy                       Type
----                     ------- --------------         --------------                       ----
rulename01 False   16/03/2025 11:41:46 PM 324120b1-b1bf-4542-8859-337e3ce74357 RemoveAllActionGroups

PS> $rules[0].Enabled = $true
PS> $debugpreference='continue'
PS> Set-AzAlertProcessingRule -InputObject $rule[0]
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [DisplaySecretsWarning], Module = [], Cmdlet = []. Returning default value [True].
DEBUG: 10:31:45 AM - SetAzureAlertProcessingRule begin processing with ParameterSet 'ByInputObject'.
DEBUG: 10:31:45 AM - using account id 'user@local.host'...
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [DisplayBreakingChangeWarning], Module = [Az.AlertsManagement], Cmdlet = [Set-AzAlertProcessingRule]. Returning default value [True].
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [EnableErrorRecordsPersistence], Module = [Az.AlertsManagement], Cmdlet = [Set-AzAlertProcessingRule]. Returning default value [False].
Set-AzAlertProcessingRule: Value cannot be null. (Parameter 'value')
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [DisplayBreakingChangeWarning], Module = [Az.AlertsManagement], Cmdlet = [Set-AzAlertProcessingRule]. Returning default value [True].
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [DisplayRegionIdentified], Module = [], Cmdlet = []. Returning default value [True].
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [CheckForUpgrade], Module = [], Cmdlet = []. Returning default value [True].
DEBUG: AzureQoSEvent:  Module: Az.AlertsManagement:0.6.3; CommandName: Set-AzAlertProcessingRule; PSVersion: 7.4.3; IsSuccess: False; Duration: 00:00:00.0094558; SanitizeDuration: 00:00:00; Exception: Value cannot be null. (Parameter 'value');
DEBUG: 10:31:45 AM - [ConfigManager] Got nothing from [EnableDataCollection], Module = [], Cmdlet = []. Returning default value [True].
DEBUG: 10:31:46 AM - SetAzureAlertProcessingRule end processing.

Environment data

Name                           Value
----                           -----
PSVersion                      7.4.3
PSEdition                      Core
GitCommitId                    7.4.3
OS                             Microsoft Windows 10.0.19045
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Module versions

ModuleType Version    PreRelease Name                                ExportedCommands
---------- -------    ---------- ----                                ----------------
Script     4.0.2                 Az.Accounts                         {Add-AzEnvironment, Clear-AzConfig, Clear-AzContext, Clear-AzDefault…}
Script     0.6.3                 Az.AlertsManagement                 {Get-AzAlert, Get-AzAlertObjectHistory, Get-AzAlertProcessingRule, Get-AzSmartGroup…}

Error output

Message        : Value cannot be null. (Parameter 'value')
StackTrace     :    at Microsoft.Azure.Commands.AlertsManagement.SetAzureAlertProcessingRule.ProcessRecordInternal()
                    at Microsoft.Azure.Commands.AlertsManagement.AlertsManagementBaseCmdlet.ExecuteCmdlet()
                    at Microsoft.WindowsAzure.Commands.Utilities.Common.CmdletExtensions.<>c__3`1.<ExecuteSynchronouslyOrAsJob>b__3_0(T c)
                    at Microsoft.WindowsAzure.Commands.Utilities.Common.CmdletExtensions.ExecuteSynchronouslyOrAsJob[T](T cmdlet, Action`1 executor)
                    at Microsoft.WindowsAzure.Commands.Utilities.Common.CmdletExtensions.ExecuteSynchronouslyOrAsJob[T](T cmdlet)
                    at Microsoft.WindowsAzure.Commands.Utilities.Common.AzurePSCmdlet.ProcessRecord()
Exception      : System.ArgumentNullException
InvocationInfo : {Set-AzAlertProcessingRule}
Line           : set-azalertprocessingrule -InputObject $rules[0]
Position       : At line:1 char:1
                 + set-azalertprocessingrule -InputObject $rules[0]
                 + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
HistoryId      : 3