Setup: O365 tenant

Problem: Whenever a user is added to a O365 group the user will receive a standard notification. There are case when you do not want to send this message.


Prerequsite : Microsoft.Exchange.Management.ExoPowershellModule

Run the following PowerShell commands:

# prerequisite Microsoft.Exchange.Management.ExoPowershellModule 
$groupname = "<groupname>"
# Check if the message is enabled
Get-UnifiedGroup -Identity $groupname | select WelcomeMessageEnabled
# if enabled , run the next command to disable
Get-UnifiedGroup $groupname | Set-UnifiedGroup -UnifiedGroupWelcomeMessageEnabled:$false
# Check the result
Get-UnifiedGroup -Identity $groupname | select WelcomeMessageEnabled

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