Get-MgTeamChannelMessageCount doesn't work

[12Knocksinna]

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• Make sure you can reproduce this issue using the latest released version of Microsoft.Graph or Microsoft.Graph.Beta.
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Describe the bug
I assume that the Get-MgTeamChannelMessageCount cmdlet should return the count of messages in a channel. It doesn't work. At least, none of the experiments I have done have extracted any value from the cmdlet. The documentation for this cmdlet is absolutely awful, which doesn't help.

To Reproduce
Run the cmdlet and provide the id for a team and channel.

Expected behavior
I expect the count of channel messages to be returned.

Debug Output
Get-MgTeamChannelMessageCount -TeamId $Team.Id -ChannelId $SelectedChannel.Id -debug
DEBUG: [CmdletBeginProcessing]: - Get-MgTeamChannelMessageCount begin processing with parameterSet 'Get'.
DEBUG: [Authentication]: - AuthType: 'Delegated', TokenCredentialType: 'InteractiveBrowser', ContextScope: 'CurrentUser', AppName: 'Microsoft Graph Command Line Tools'.
DEBUG: [Authentication]: - Scopes: [AccessReview.Read.All, Agreement.Read.All, Analytics.Read, APIConnectors.Read.All, Application.Read.All, Application.ReadWrite.All, AppRoleAssignment.ReadWrite.All, AuditLog.Read.All, Channel.ReadBasic.All, ChannelMessage.Read.All, ChannelMessage.ReadWrite, ChannelMessage.Send, ChannelSettings.Read.All, ChannelSettings.ReadWrite.All, Chat.ManageDeletion.All, Chat.ReadWrite, Community.ReadWrite.All, Contacts.ReadWrite, CrossTenantUserProfileSharing.Read, CrossTenantUserProfileSharing.Read.All, DelegatedPermissionGrant.ReadWrite.All, Directory.AccessAsUser.All, Directory.Read.All, Directory.ReadWrite.All, email, EntitlementManagement.Read.All, Group.Read.All, Group.ReadWrite.All, GroupMember.Read.All, GroupMember.ReadWrite.All, IdentityProvider.Read.All, IdentityProvider.ReadWrite.All, IdentityRiskyUser.Read.All, IdentityRiskyUser.ReadWrite.All, IdentityUserFlow.Read.All, Mail.Read, Mail.ReadWrite, Mail.Send, Mail.Send.Shared, OnlineMeetingArtifact.Read.All, OnlineMeetings.Read, openid, Organization.Read.All, PeopleSettings.Read.All, PeopleSettings.ReadWrite.All, Place.Read.All, Policy.Read.All, Policy.Read.PermissionGrant, Policy.ReadWrite.ApplicationConfiguration, Policy.ReadWrite.ConditionalAccess, PrivilegedAccess.Read.AzureAD, PrivilegedAccess.Read.AzureResources, profile, Reports.Read.All, ReportSettings.ReadWrite.All, RoleAssignmentSchedule.Read.Directory, RoleAssignmentSchedule.ReadWrite.Directory, RoleEligibilitySchedule.Read.Directory, RoleManagement.Read.All, RoleManagement.Read.Directory, SecurityActions.ReadWrite.All, SecurityEvents.Read.All, SecurityEvents.ReadWrite.All, ServiceHealth.Read.All, ServiceMessage.Read.All, SharePointTenantSettings.ReadWrite.All, Sites.FullControl.All, Sites.Manage.All, Sites.Read.All, Sites.ReadWrite.All, Tasks.Read, Tasks.ReadWrite, Team.ReadBasic.All, TeamMember.Read.All, TeamSettings.Read.All, TeamsTab.Read.All, TeamworkTag.ReadWrite, User.Read, User.Read.All, User.ReadBasic.All, User.ReadWrite.All, UserAuthenticationMethod.Read.All, UserAuthenticationMethod.ReadWrite.All, VirtualEvent.Read].
DEBUG: ============================ HTTP REQUEST ============================

HTTP Method:
GET

Absolute Uri:
https://graph.microsoft.com/v1.0/teams/84fe8ec1-d85f-4564-a786-1f7bedd9862c/channels/19%3A8819a57f357b4d538d116bdb80111755%40thread.skype/messages/$count

Headers:
FeatureFlag : 00000043
Cache-Control : no-store, no-cache
User-Agent : Mozilla/5.0,(Windows NT 10.0; Microsoft Windows 10.0.22631; en-IE),PowerShell/7.4.1
Accept-Encoding : gzip
SdkVersion : graph-powershell/2.13.1
client-request-id : 2e0184b2-70c8-40f9-94ed-ab4b45f1191f

Body:

DEBUG: ============================ HTTP RESPONSE ============================

Status Code:
NotFound

Headers:
Vary : Accept-Encoding
Strict-Transport-Security : max-age=31536000
request-id : edfc06b3-7e84-4e37-9c35-fcc5179d057a
client-request-id : 2e0184b2-70c8-40f9-94ed-ab4b45f1191f
x-ms-ags-diagnostic : {"ServerInfo":{"DataCenter":"North Europe","Slice":"E","Ring":"4","ScaleUnit":"002","RoleInstance":"DU2PEPF0001080B"}}
Date : Sun, 11 Feb 2024 23:21:38 GMT

Body:
{
"error": {
"code": "NotFound",
"message": "Requested API is not supported. Please check the path.",
"innerError": {
"date": "2024-02-11T23:21:39",
"request-id": "edfc06b3-7e84-4e37-9c35-fcc5179d057a",
"client-request-id": "2e0184b2-70c8-40f9-94ed-ab4b45f1191f"
}
}
}

Get-MgTeamChannelMessageCount_Get: Requested API is not supported. Please check the path.

Status: 404 (NotFound)
ErrorCode: NotFound
Date: 2024-02-11T23:21:39

Headers:
Vary : Accept-Encoding
Strict-Transport-Security : max-age=31536000
request-id : edfc06b3-7e84-4e37-9c35-fcc5179d057a
client-request-id : 2e0184b2-70c8-40f9-94ed-ab4b45f1191f
x-ms-ags-diagnostic : {"ServerInfo":{"DataCenter":"North Europe","Slice":"E","Ring":"4","ScaleUnit":"002","RoleInstance":"DU2PEPF0001080B"}}
Date : Sun, 11 Feb 2024 23:21:38 GMT

DEBUG: [CmdletEndProcessing]: - Get-MgTeamChannelMessageCount end processing.

Module Version

Please run Get-Module Microsoft.Graph* after cmdlet execution and paste the output below.
If a module cannot be installed or imported, please run Get-Module -ListAvailable and paste the output.

Environment Data
$PSVersionTable

Name Value

---

PSVersion 7.4.1
PSEdition Core
GitCommitId 7.4.1
OS Microsoft Windows 10.0.22631
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0

[timayabi2020]

Hi @12Knocksinna thanks for logging this issue.
I tried reproducing the issue using graph explorer and I was getting the same result as shown on your debug information.

Further checks revealed that the Odata $count query parameter is not supported for the path /teams/{team-id}/channels/{channel-id}/messages. This is as per the API reference documentation here.

I have also logged an issue here with the metadata team.

For now, I would suggest you consider using (Get-MgTeamChannelMessage -TeamId $tenantId -ChannelId $channelId).count