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How to Set Up Single Sign-On (SSO) in Microsoft Entra ID

Here are the steps for configuring SSO settings in the Microsoft Entra ID admin console.

Written by LegalOnサポートチーム

This document has been generated with machine translation.


*For instructions on how to set up SSO on the LegalOn side, please refer to [Set up SSO].

Terms of Use

LegalOn Terms

  • You have subscribed to the SSO (Single Sign-On) option

  • Permissions required for configuration: IT Administrator

Requirements on the Microsoft Entra ID side

  • You have a Microsoft Entra ID subscription

  • Enterprise applications are being used with Microsoft Entra ID

  • The email address registered in Microsoft Entra ID matches the email address registered in LegalOn

*If you wish to subscribe to Options, please contact your sales representative.

Important Notes

  • Currently, SAML authentication only supports SP-Initiated SSO (a method where the Service Provider begins SAML authentication), so you must log in from the LegalOn login screen each time. Please note that the IdP-Initiated SSO authentication process will result in an error and authentication will not be completed.

  • If you enable SSO while the settings are incorrect, you will be unable to log in if you close your browser or Logout. After enabling SSO, please ensure you test whether you can log in successfully by following the " Test SSO Login " procedure in a different browser or in incognito mode of the same browser, while keeping the SSO settings screen open.

Configuring SSO settings in the Entra ID Admin Console

Configuring [Basic SAML Configuration]

1. Click [Enterprise Applications] → [+ New Application]

2. Under [Create Custom Application], enter (or select) the following items, then click [Create]

Field

Input

What is the name of your app?

Enter {any application name}

Example: LegalOn

What actions do you want to perform in the application?

Select [Integrate other applications not found in the Gallery (outside the Gallery)]

3. Click [Single Sign-On], then select [SAML] from [Select Single Sign-On Method]

4. Select [Basic SAML Configuration], click [Save], and configure the following

  • Identifier (Entity ID)

    • Paste the value from LegalOn’s [SSO settings screen] → [Identity provider information] → [Entity ID(Identifier)]

  • Response URL (Assertion Consumer Service URL)

    • Paste the value from LegalOn’s [SSO settings screen] → [Identity provider information] → [Endpoint URL]

After entering the values, please click [Save].

[Attributes and Claims] Settings

For LegalOn's SAML authentication, we expect to receive the Email address value from Entra ID as the Name ID. Please refer to the following for configuration instructions.

1. Click [Attributes and Claims] → [Save]

2. Click [Unique User ID (Name ID)] and enter (or change) the following items

Field

Change in Input Value

Name Identifier Format

Email address

Source Attribute

user.mail

After entering the value, please click [Save].

Values Retrieved from Microsoft Entra ID

LegalOn configuration items

[Set up {Enterprise Application Name}] → [Login URL]

Copy and paste into [Identity provider endpoint URL (HTTP redirect)] on the LegalOn SSO settings screen

Entra ID [SAML Certificate] → [Certificate (Base64)]

Instructions:

Click [Download] and paste it into the [SAML signing certificate (X.509 public key certificate issued by the identity provider)] field on the LegalOn SSO settings screen

Copy and paste all the strings from [-----BEGIN CERTIFICATE-----] to [----END CERTIFICATE-----], including 
and
, into
.

Email domain enabled for SAML authentication

Enter this in the [Email domain] field on the LegalOn SSO settings screen

Troubleshooting

If the following error screen is displayed during Login:

① Assign [user.userprincipalname] to the source attribute for [emailaddress]

Click [Attributes and Claims] → [Add New Claim], and configure the following fields and values (*).

(*) If there is an item with the value [user.mail] under [Attributes and Claims] → [Add Claims]:

Click the claim name [user.mail] and please enter the email address to be used for SSO login.

② Restart the tab or browser, Open " https://app.legalon-cloud.com/ ", and attempt SSO Login again

If the issue persists, please contact the support team via " Get Support - How to Contact Us."

This completes the Entra ID configuration.

Once the configuration is complete, please proceed with the SSO settings on the LegalOn side.

For instructions on SSO settings on the LegalOn side, please refer to "Set up SSO. "

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