Wednesday, 28 December 2016

Create all day event using Microsoft Graph Api

I have just developed a small application to import holiday list from csv file into every Office 365 users Outlook calendar. I have already created an Azure AD Application and set the required permission "Read and write calendars in all mailboxes". I am using following graph api endpoint to post my new calendar event.
Json Body to add new Christmas Holiday event (2016-12-25):
  "originalStartTimeZone": "UTC",
  "originalEndTimeZone": "UTC",
   "Subject":"Christmas Holiday",
"iCalUId": "iCalUId-value",
To a create holiday event, we need to make sure that the event should occur in whole day (12 AM to 12 PM), to achieve this we need to set the parameter isAllDay=true and we have to set the start and end properties of the event to midnight of the day when event occurs (2016-12-25T00:00:00) and midnight of the next day of the event (2016-12-26T00:00:00).

If you set the event without giving the parameter "IsAllDay":true, the event may spread over two days due to time zone problem. So, don't forgot to set the property IsAllDay as true to create all day event like holiday.

Html Javascript Code : Create Holiday Calendar Event

var jsonBody = '{  
  "originalStartTimeZone": "UTC",
  "originalEndTimeZone": "UTC",
   "Subject":"Christmas Holiday",
"iCalUId": "iCalUId-value",

var httpRequest = new XMLHttphttpRequestuest();"POST", "");
httpRequest.sethttpRequestuestHeader("authorization", "Bearer " + accessToken);
httpRequest.sethttpRequestuestHeader("content-type", "application/json");
httpRequest.onload = function (e) {
    if (httpRequest.readyState === 4) {
        if (httpRequest.status === 201) {
httpRequest.onerror = function (e) {
    // Handle error

Monday, 26 December 2016

List all the OneDrive for Business users in Office 365 - Powershell

We can get the list of users with OneDrive for Business feature provisioned by using SharePoint Online UserProfileService with Powershell. As you know SharePoint is base for OneDrive as like some other services (Office 365 Groups, Planner, Teams, and etc..), so it's users basic profile information obviously will be stored in SharePoint. You can get all the SharePoint Online users using SharePoint UserProfileService and look for the Personal Space object, users who have OneDrive for Business site alone have value for this property and other users do not have this property.

Note: The below script use CSOM (Client Object Model) code to retrieve all OneDrive sites. If you need solution without CSOM, you can refer this post: Find and Export all OneDrive for Business users using Powershell

Steps to Export OneDrive for Business Provisioned Users:

  • Fetch all SharePoint Online users using UserProfileService.
  • Find if OneDrive is provisioned or not.
  • Export my site collections to text file.
Note: Replace the variable <your tenant name> with your Office 365 tenant name in all the occurrences and provide your own admin credentials.
# Specify sharepoint online admin url 
$adminURL = "https://<your tenant name>"

# Specify the location where the list of OneDrive sites should be saved
$LogFile = 'C:\OneDrivesites.txt'

#Add required references to SharePoint client assembly to use CSOM 

#Provide your global admin credentials.
$UserName = "admin@<your tenant name>"
$SecPwd = $(ConvertTo-SecureString 'password' -asplaintext -force) 
$adminCreds = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName,$SecPwd) 

# Set User Profile Service path using SPO admin URL 
$proxyaddr = "$adminURL/_vti_bin/UserProfileService.asmx?wsdl"
# Create a new webservice proxy to access UserProfileService
$UserProfileService= New-WebServiceProxy -Uri $proxyaddr -UseDefaultCredential False
$UserProfileService.Credentials = $adminCreds

# Set authentication cookies
$strAuthCookie = $adminCreds.GetAuthenticationCookie($adminURL)
$uri = New-Object System.Uri($adminURL)
$container = New-Object System.Net.CookieContainer
$container.SetCookies($uri, $strAuthCookie)
$UserProfileService.CookieContainer = $container

# Sets the first User profile, at index -1
$UserProfileResult = $UserProfileService.GetUserProfileByIndex(-1)

Write-Host "Starting- This could take a while."

$NumProfiles = $UserProfileService.GetUserProfileCount()
$i = 1

# As long as the next User profile is NOT the one we started with (at -1)...
While ($UserProfileResult.NextValue -ne -1) 
Write-Host "Checking profile $i of $NumProfiles" -foreground Yellow

# Look for the Personal Space object in the User Profile and retrieve it
# (PersonalSpace is the name of the path to a user's OneDrive for Business site. 
# Users who have not yet created a  OneDrive for Business site might not have this property)
$Prop = $UserProfileResult.UserProfile | Where-Object { $_.Name -eq "PersonalSpace" } 
$Url= $Prop.Values[0].Value

# If "PersonalSpace" (which we've copied to $Url) exists, log it to our file...
if ($Url) {
$siteUrl = "https://<your tenant name>"+ $Url
# Write OneDrive site url in console
Write-Host $Url -foreground Green
$siteUrl | Out-File $LogFile -Append -Force

# And now we check the next profile the same way...
$UserProfileResult = $UserProfileService.GetUserProfileByIndex($UserProfileResult.NextValue)
Source :

Thursday, 22 December 2016

Add or Remove Members and Owners in Office 365 Group using Powershell

We can use the Add-UnifiedGroupLinks cmdlet to add members and owners to an Office 365 Group and remove members and owners from unified group using the Remove-UnifiedGroupLinks cmdlet. Both the cmdlets includes the following key parameters:

Identity – Alias, Display name, or Email address of the group
Links – Alias, Display name, or Email address of the user being added
LinkType – Members, Owners, or Subscribers

Before proceed, run the following commands to connect Exchange Online Powershell session.
$365Logon = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri -Credential $365Logon -Authentication Basic -AllowRedirection
Import-PSSession $Session

Add Members and Owners to Office 365 Group

This example add the member to the Office 365 Group named TestO365Group. We need to set the parameter LinkType as Members to add users as member.
Add-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members  –Links
The parameter Links accept multiple values, use the following syntax: value1,value2.... to add multiple members. If the values contain spaces or otherwise require quotation marks, use the following syntax: "value1","value2",....
Add multiple users as member:
Add-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members  –Links,
Add an user as owner: To add an user as a owner to office 365 group, first we need to add the user as a member to the specified group and then we have to add the user as owner.
Add-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members –Links
Add-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Owners –Links

Remove Members or Owners from Office 365 Group

This example removes the member and from the Office 365 Group named TestO365Group..
Remove-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members –Links , -Confirm:$false
Remove owner: To remove an owner from the group, first you have to remove user from the LinkType Owners and remove the user from the LinkType Members.
Remove-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Owners –Links -Confirm:$false
Remove-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members –Links -Confirm:$false

Add or Remove members from a CSV File:

You can use the below powershell commands to add members to an office 365 group by importing users from csv file. Consider the csv file members.csv that includes the column member which holds the member identity in each row of the csv file.
Import-CSV "C:\members.csv" | ForEach-Object {
Add-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members  –Links $_.member

List members or owners of a group

Once we added or removed members or owners, we can use the Get-UnifiedGroupLinks cmdlet to get members or owners of a specific group. The below command lists all members of the given group.
Get-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Members
List owners of a group.
Get-UnifiedGroupLinks –Identity "TestO365Group" –LinkType Owners