How to Remove a User from Office 365 Group using PowerShell?

Requirement: Remove user from office 365 group using PowerShell

How to Remove a User from Office 365 Group?
As an admin, you can remove members from any Office 365 group through Microsoft 365 admin center. Here is how:

• Login to the Microsoft 365 Admin Center site: https://admin.microsoft.com
• Expand Groups and Click on Groups link in the left navigation. 
• Search and Select the Office 365 group you wish to remove members.
• In the Group details page, Click on "Members" tab >> Click on View all and manage members link. 
  
• Now you can remove group members by clicking on the "X" button next to each member. Hit save once you are done!
  

PowerShell to Remove User from Office 365 Group 
Here is how we can use PowerShell to remove a user a office 365 group:

#Variables
$GroupName = "IT Team"
$UserUPN = "[email protected]"

#Connect to AzureAD
Connect-AzureAD -Credential (Get-Credential)
 
#Get the Azure AD Group
$AADGroup = Get-AzureADGroup -Filter "DisplayName eq '$GroupName'"

#Get the Azure AD User
$AADUser  = Get-AzureADUser -Filter "UserPrincipalName eq '$UserUPN'"

#Remove User from Group
Remove-AzureADGroupMember -ObjectId $AADGroup.ObjectID  -MemberId $AADUser.ObjectID 

Similarly, You can remove a user from all Office 365 Groups quickly through PowerShell

#Variables
$UserUPN = "[email protected]"

#Connect to AzureAD
Connect-AzureAD -Credential (Get-Credential) | Out-Null
 
#Get all Azure AD Unified Groups
$AADGroups = Get-AzureADMSGroup -Filter "groupTypes/any(c:c eq 'Unified')" -All:$true

#Get the Azure AD User
$AADUser  = Get-AzureADUser -Filter "UserPrincipalName eq '$UserUPN'"

#Check each group for the user
ForEach ($Group in $AADGroups) 
{
    $GroupMembers = (Get-AzureADGroupMember -ObjectId $Group.id).UserPrincipalName
    If ($GroupMembers -contains $UserUPN)
    {
        #Remove user from Group
        Remove-AzureADGroupMember -ObjectId $Group.Id -MemberId $AADUser.ObjectId 
        Write-Output "$UserUPN was removed from $($Group.DisplayName)"
    }
}

How about removing multiple users in Microsoft 365 groups from a CSV file? My CSV file has "UPN" column with the login IDs of users.

#Variables
$CSVFile = "C:\Temp\UserList.csv"
 
#Connect to AzureAD
Connect-AzureAD -Credential (Get-Credential) | Out-Null
  
#Get all Azure AD Unified Groups
$AADGroups = Get-AzureADMSGroup -Filter "groupTypes/any(c:c eq 'Unified')" -All:$true

#Iterate through each line in CSV
Import-CSV $CSVFile | ForEach-Object {
    #Get the UPN
    $UPN = $_.UPN
    
    #Get the Azure AD User
    $AADUser  = Get-AzureADUser -Filter "UserPrincipalName eq '$UPN'"

    #Check each group for the user
    ForEach ($Group in $AADGroups) 
    {
        $GroupMembers = (Get-AzureADGroupMember -ObjectId $Group.id).UserPrincipalName
        If ($GroupMembers -contains $UPN)
        {
            #Remove user from Group
            Remove-AzureADGroupMember -ObjectId $Group.Id -MemberId $AADUser.ObjectId
            Write-Output "$UPN is removed from Group '$($Group.DisplayName)'"
        }
    }
}