Your account must have a verified domain in order to set up and enable SSO. Review this article for instructions on verifying your domain. Review this article for instructions on verifying your domain.
Step 1: Create a new application on Entra ID
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Log in to the Microsoft Azure Portal
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Go to Microsoft Entra ID
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Navigate to Enterprise applications > All applications

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In the new page, select Create your own application

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Type in name Nitro, select Integrate any application you don't find in the gallery and click Create (no template chosen)

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Navigate to SAML SSO section on Nitro Productivity Pro
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Enter the following placeholder values:
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SAML Entity ID:
urn:auth0:gonitro-prod:123 -
ACS URL:
https://auth.gonitro.com/login/callback?connection=123
These will be updated later in Step 3.
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Download the Base 64 Cert from Box 3
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Copy Login URL from Box 4
Step 2: Set Up SAML SSO in the Nitro Admin Portal
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Log in to the Nitro Admin Portal
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From the left navigation pane, go to Settings, then navigate to the Single Sign-On tab
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Click the Edit Configuration button

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Paste the Login URL copied from Entra into the Sign-in URL field
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Upload the Base 64 Cert downloaded from Entra into the X.509 Signing Certificate field

- Click Submit and Enable SSO, then click Save

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Copy the following values for use in the next step:
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Entity ID
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Reply URL 1
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Reply URL 2
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Step 3: Update SAML Settings in Entra
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Go back to Microsoft Entra ID

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Navigate to Enterprise applications > All applications > Nitro Productivity Suite

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Under the Manage menu, click Single sign-on
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Click Edit on Basic SAML Configuration

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Update the placeholder values using the values copied from Nitro Admin:

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Paste SAML Entity ID to Identifier (Entity ID)
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Paste both Reply URL 1 and Reply URL 2 to under Reply URL (Assertion Consumer Service URL)
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- Save Changes