Forum Discussion
Add existing Holiday to Auto Attendant
- Jul 02, 2025
Okay, understood. There is a CallHandlingAssociation step in there that does that.
Could you please check this and let us know if it helps?
New-CsAutoAttendantCallHandlingAssociation (MicrosoftTeamsPowerShell) | Microsoft Learn
To add an existing Holiday to an Auto Attendant in Microsoft Teams using PowerShell, you should use the Teams PowerShell Module (MicrosoftTeams). You can associate a pre-configured Holiday set with an Auto Attendant using the Set-CsAutoAttendant cmdlet.
# Connect to Teams PowerShell
Connect-MicrosoftTeams
# Get the Auto Attendant and Holiday objects
$autoAttendant = Get-CsAutoAttendant -Identity "<AutoAttendantId or Name>"
$holidaySet = Get-CsAutoAttendantHolidaySet -Identity "<HolidaySetId or Name>"
# Update the Auto Attendant to use the Holiday set
Set-CsAutoAttendant -Identity $autoAttendant.Identity -HolidaySets @($holidaySet.Identity)
Replace <AutoAttendantId or Name> and <HolidaySetId or Name> with your actual values.
Renaming a flow:
- Call Flow names do not have to be unique across all Auto Attendants, but they must be unique within the same Auto Attendant.
- You can rename a Call Flow by updating its Name property and then updating the Auto Attendant.
# Get the Auto Attendant
$aa = Get-CsAutoAttendant -Identity "<AutoAttendantId or Name>"
# Find the call flow you want to rename
$callFlow = $aa.CallFlows | Where-Object { $_.Name -eq "OldName" }
# Rename the call flow
$callFlow.Name = "NewName"
# Update the Auto Attendant with the renamed call flow
Set-CsAutoAttendant -Instance $aa
Ref: Set-CsAutoAttendant (MicrosoftTeamsPowerShell) | Microsoft Learn
Get-CsAutoAttendantHolidays (MicrosoftTeamsPowerShell) | Microsoft Learn
Thanks,
Prasad Das
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Hello Prasad Das
Thank you very much for your answer.
There is an error for the adding
Set-CsAutoAttendant : A parameter cannot be found that matches parameter name 'HolidaySets'.
As far that I see on explanation the ID of the Get-CsAutoAttendantHolidays needs to be the ID of an existing AA which has the holidays.
The Set-CsAutoAttendant uses only the parameter Instance
Have a great day
JFM_12
- Prasad_Das-MSFTJul 02, 2025
Microsoft
Here's an example which you can follow:
$autoAttendant = Get-CsAutoAttendant -Identity "fa9081d6-b4f3-5c96-baec-0b00077709e5" $christmasGreetingPrompt = New-CsAutoAttendantPrompt -TextToSpeechPrompt "Our offices are closed for Christmas from December 24 to December 26. Please call back later." $christmasMenuOption = New-CsAutoAttendantMenuOption -Action DisconnectCall -DtmfResponse Automatic $christmasMenu = New-CsAutoAttendantMenu -Name "Christmas Menu" -MenuOptions @($christmasMenuOption) $christmasCallFlow = New-CsAutoAttendantCallFlow -Name "Christmas" -Greetings @($christmasGreetingPrompt) -Menu $christmasMenu $dtr = New-CsOnlineDateTimeRange -Start "24/12/2017" -End "26/12/2017" $christmasSchedule = New-CsOnlineSchedule -Name "Christmas" -FixedSchedule -DateTimeRanges @($dtr) $christmasCallHandlingAssociation = New-CsAutoAttendantCallHandlingAssociation -Type Holiday -ScheduleId $christmasSchedule.Id -CallFlowId $christmasCallFlow.Id $autoAttendant.CallFlows += @($christmasCallFlow) $autoAttendant.CallHandlingAssociations += @($christmasCallHandlingAssociation) Set-CsAutoAttendant -Instance $autoAttendant
This example adds a Christmas holiday to an AA that has an Identity of fa9081d6-b4f3-5c96-baec-0b00077709e5.
Ref: Set-CsAutoAttendant (MicrosoftTeamsPowerShell) | Microsoft LearnTAC reference here - https://learn.microsoft.com/en-us/microsoftteams/create-a-phone-system-auto-attendant?tabs=call-flow#step-23-set-up-call-flows-for-holidays-optional
- JFM_12Jul 02, 2025Iron Contributor
Hi Prasad Das
Thank you for your answer.
This example creates a new holiday. But I have allready one.
I just need to add the previously created one to a new AA.
Thank you
JFM_12- Prasad_Das-MSFTJul 02, 2025
Microsoft
Okay, understood. There is a CallHandlingAssociation step in there that does that.
Could you please check this and let us know if it helps?
New-CsAutoAttendantCallHandlingAssociation (MicrosoftTeamsPowerShell) | Microsoft Learn