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Author: Roopan-Microsoft

docs/AppAuthentication.md

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+## Add Authentication in Azure App Service configuration
+1. Click on `Authentication` from left menu.
+
+  ![Authentication](Images/AppAuthentication.png)
+
+2. Click on `+ Add Provider` to see a list of identity providers.
+
+  ![Authentication Identity](Images/AppAuthenticationIdentity.png)
+
+3. Click on `+ Add Provider` to see a list of identity providers.
+
+  ![Add Provider](Images/AppAuthIdentityProvider.png)
+
+4. Select the first option `Microsoft Entra Id` from the drop-down list.
+ 
+ ![Add Provider](Images/AppAuthIdentityProviderAdd.png)
+
+5. Accept the default values and click on `Add` button to go back to the previous page with the identity provider added.
+
+ ![Add Provider](Images/AppAuthIdentityProviderAdded.png)
+
+ ### Creating a new App Registration
+1. Click on `Home` and select `Microsoft Entra ID`.
+
+![Microsoft Entra ID](Images/MicrosoftEntraID.png)
+
+2. Click on `App registrations`.
+
+![App registrations](Images/Appregistrations.png)
+
+3. Click on `+ New registration`.
+
+![New Registrations](Images/NewRegistration.png)
+
+4. Provide the `Name`, select supported account types as `Accounts in this organizational directory only(Contoso only - Single tenant)`, select platform as `Web`, enter/select the `URL` and register.
+
+![Add Details](Images/AddDetails.png)
+
+5. After application is created sucessfully, then click on `Add a Redirect URL`.
+
+![Redirect URL](Images/AddRedirectURL.png)
+
+6. Click on `+ Add a platform`.
+
+![+ Add platform](Images/AddPlatform.png)
+
+7. Click on `Web`.
+
+![Web](Images/Web.png)
+
+8. Enter the `web app URL` (Provide the app service name in place of XXXX) and Save. Then go back to [Step 4] and follow from _Point 4_ choose `Pick an existing app registration in this directory` from the Add an Identity Provider page and provide the newly registered App Name.
+
+![Add Details](Images/WebAppURL.png)