Managing Microsoft Teams environments efficiently requires regular monitoring of team activity to identify inactive teams and channels that may no longer be needed. This PowerShell script automates the process of checking whether any Microsoft Teams channels have any messages, helping administrators to clean up unused resources. Below, we break down the script’s functionality and explain each step in detail.
The script imports data from a CSV file, iterates through each site listed, checks if the site is connected to Microsoft Teams, and then determines if any messages exist in the team’s channels. Finally, it exports the results to a CSV file.
Before running the script, ensure you have the following prerequisites:
1. Importing Data from CSV
$data = Import-Csv "C:\scripts\FindEmptyTeams\SitesList.csv"
$TeamsData=@()
2. Iterating Through Each Row:
foreach ($row in $data) {
The script loops through each row of the CSV file.
3. Checking If the Site is Connected to MS Teams:
if($row.Teams -eq "TRUE"){
This condition checks if the site is connected to Microsoft Teams.
4. Connecting to the Specific Site:
Connect-PnPOnline -Url $row.URL -Interactive
write host "connected to" $row.URL
The script connects to the specified site URL using Connect-PnPOnline and confirms the connection.
5. Retrieving Channels:
$Channels = Get-PnPTeamsChannel -Team $row.sitename | select DisplayName
This line retrieves all channels for the given team and collect the display name of each channel.
6. Checking for Messages in Each Channel:
foreach ($channel in $Channels) {
$Message = Get-PnPTeamsChannelMessage -Team $row.sitename -Channel $channel.DisplayName | Where-Object -FilterScript {$_.Body.Content -ne '<systemEventMessage/>'}
if ($Message -ne $null) {
break
} else {
$Message = $null
}
}
The script iterates through each channel, retrieves messages, and checks if they are any messages exists. If any user messages are found, it exits the loop.
7. Storing Results:
if ($Message -eq $null) {
$TeamsData += New-Object PSObject -Property @{
SiteURL = $row.URL
TeamName = $row.sitename
TeamChat = "No"
}
} else {
$TeamsData += New-Object PSObject -Property @{
SiteURL = $row.URL
TeamName = $row.sitename
TeamChat = "Yes"
}
}
Based on whether messages were found, the script adds an object to $TeamsData indicating if the team chat is active or not.
8. Exporting Results to CSV:
$TeamsData | Export-Csv "C:\scripts\FindEmptyTeams\TeamsOutputList.csv" -NoTypeInformation
Finally, the script exports the collected data to TeamsOutputList.csv.
#Import data from csv
$data = Import - Csv "C:\scripts\FindEmptyTeams\SitesList.csv"
$TeamsData = @()
#Itrating through each row
foreach($row in $data) {
if ($row.Teams - eq "TRUE") {
#Connecting to that specific site
Connect - PnPOnline - Url $row.URL - Interactive
write host "connected to" $row.URL
$Channels = Get - PnPTeamsChannel - Team $row.sitename | select DisplayName
foreach($channel in $Channels){
$Message = Get - PnPTeamsChannelMessage - Team $row.sitename - Channel $channel.DisplayName | Where - Object - FilterScript { $_.Body.Content - ne '<systemEventMessage/>' }
if ($Message - ne $null) {
break
}else {
$Message = $null
}
}
if ($Message - eq $null) {
$TeamsData += New - Object PSObject - Property @{
SiteURL = $row.URL
TeamName=$row.sitename
TeamChat="No"
}
}else {
$TeamsData += New - Object PSObject - Property @{
SiteURL = $row.URL
TeamName=$row.sitename
TeamChat="Yes"
}
}
}
}
$TeamsData | Export - Csv "C:\scripts\FindEmptyTeams\TeamsOutputList.csv"
This PowerShell script efficiently automates the process of identifying inactive Microsoft Teams channels, allowing administrators to manage their Teams environments more effectively. By running this script regularly, you can ensure that only active and necessary teams and channels are maintained, contributing to a more organised and clutter-free Teams workspace.
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