# Signing into Office 365 with PowerShell

## Introduction

Office 365 provides a powerful set of tools for managing large-scale IT environments through its suite of cloud-based services. However, sometimes you may find yourself in situations where using the graphical user interface (GUI) isn't practical or feasible, such as when working on servers without local access to a physical keyboard and mouse.

In these cases, PowerShell comes to your rescue! With its extensive set of cmdlets specifically designed for managing Office 365 environments, it's possible to automate many repetitive tasks that would otherwise take hours if done manually. In this article we'll cover how you can sign into office 365 using powershell.

## Prerequisites

Before diving in, make sure you have the following prerequisites met:

1. You are running PowerShell version 5 or higher (earlier versions may not support all features).

2. The Microsoft Online Module for Windows PowerShell is installed and imported into your Powershells session.

3. Your account has been added as a global admin to Office365.

## Step-by-Step Guide

### Step 1: Install the Azure Active Directory Module

To install the module, open an elevated powershell prompt (Right click on Start > Select 'Windows PowerShell' or press Win + X), type `Install-Module -Name MSOnline` and hit Enter. Once installed, import it by running `Import-Module -Force -Name MicrosoftOnline`.

### Step 2: Create a Service Principal

To use Azure Active Directory cmdlets in your scripts, you'll need to create an application (called 'client') that can act on behalf of your account. To do this:

1. Go to the 'Azure portal'(https://portal.azure.com/).

2. Click 'Directory + Subscription' from the left-hand menu.

3. Select the Azure Active Directory instance associated with Office 365.

### Step - 1: Create a New Application

- Click on 'Applications'(https://portal.azure.com/#blade/Microsoft_Azure_Support_/CommonProblems/azureActiveDirectoryTroubleshootingBlade/diag_sourcedetails/servicetag.df8f4a7-f3d6-41c0-a2e1-cfe9adcf67ce) from the left-hand menu.

- Click on 'New application'(https://portal.azure.com/#blade/Microsoft_Azure_Support_/CommonProblems/azureActiveDirectoryTroubleshootingBlade/diag_sourcedetails/servicetag.df8f4a7-f3d6-41c0-a2e1-cfe9adcf67ce).

### Step - 2: Register the Application

- In 'What is this application?' choose 'Single sign-on'(https://portal.azure.com/#blade/Microsoft_Azure_Support_/CommonProblems/azureActiveDirectoryTroubleshootingBlite/SinglerelationshipId=a5cfaaa3-e6a4-43e7-a0da-fd9ccedfde97).

- Click on 'Next'.

### Step - 3: Configure the Single Sign-On

- Select 'Office365 as a single sign-on identity provider'(https://portal.azure.com/#blade/Microsoft_Azure_Support_/CommonProblems/azureActiveDirectoryTroubleshootingBlade/diag_sourcedetails/servicetag.df8f4a7-f3d6-41c0-a2e1-cfe9adcf67ce).

- Click on 'Next'.

### Step - 4: Configure the Single Sign-On for Office365

- Enter a Reply URL in the format `https://yourdomain.sharepoint.com/_w/FE7A8E88-F34F-41B2-A3CE-C6AA5DE67DFD/_api/web/lists/getbytitle('hidden')/rootfolder/.wellknown/PnP/SiteClientForms.aspx?Xsn=1&IsDlg=1`.

### Step - 5: Configure the Single Sign-On for Office365 (Part II)

- Click on Save.

## In conclusion, signing into office 365 with powershell can be a complex process but following these steps will ensure you're able to do so easily and efficiently.

Sign into office 365