You need to follow the below steps to enable single sign-on.
In Azure:
Sign in to the Azure Active Directory portal using your Microsoft identity platform administrator account.
Select Azure Active Directory > Enterprise Applications > New application.
Select New Application and choose Create your own application. The Create your own application page appears.
Under What are you looking to do with your application? choose Integrate any other application you don't find in the gallery. This option is typically used for SAML and WS-Fed applications.
Select Create. The application Overview page opens
If the Select a single sign-on method page appears, select SAML.
To edit the basic SAML configuration options, select the Edit icon (a pencil) in the upper-right corner of the Basic SAML Configuration section
Fill out the Service Providers Details.
- In the Assertion Consumer Service URL text box, paste the Atatus SAML endpoint URL which you can copy from Atatus Settings » Account Settings » Single sign-on.
- In the Entity ID text box, enter Atatus Account Id. Click on the save button.
In the Set up Single Sign-On with SAML - Preview page, find the SAML Signing Certificate heading and select the Edit icon (a pencil). The SAML Signing Certificate page appears.
Select New Certificate. A new row appears below the certificate list. Select Save. The new certificate now appears with a status of Inactive, the expiration date that you chose, and a thumbprint
Display the SAML Signing Certificate page. Select the ellipsis (...) next to the certificate you want to download, and then choose which certificate format you want. You have to download Download fedrated certificate.
If sign-on is successful, you're ready to assign users and groups to your SAML application
In Atatus
Go to Settings » Account Settings » Single sign-on tab in Atatus.
Upload Download fedrated certificate in atatus.
Now your Single Sign-on feature is enabled and ready for use.
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