15Five SSO Login Not Working

How to fix it

Try these in order — the most common fix is first.

1. 1. Fix 403/400: email and assignment

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   1. Make sure the user's email is identical in your IdP and in 15Five
   2. Assign the user to the 15Five app in the IdP
   3. Have the user try again
   Did this fix it? Yes No

2. 2. Fix 422: attribute mapping

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   1. In the IdP 15Five app, confirm Name ID Contents maps to a valid attribute and the Email attribute name is filled in
   2. If Name ID Contents is "Not Used", fill in the Employee ID attribute name
   3. Save, then have the user log in once to populate attributes
   Did this fix it? Yes No

3. 3. Fix the subdomain error

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   1. In 15Five open Company Settings > SAML Single Sign-On
   2. Re-enter the subdomain in lowercase letters only, no spaces or special characters
   3. Save
   Did this fix it? Yes No

4. 4. Keep password login on while testing

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   1. Leave password sign-in enabled until SSO is confirmed working
   2. If SAML Single Sign-On is missing in Company Settings, ask 15Five Support whether your plan includes SSO
   Did this fix it? Yes No

Symptoms

Users get a 403, 422 or Azure AADSTS error, or a "subdomain is not configured for SAML2" message when signing in via SSO.

Why it happens

• User not assigned to the 15Five app in the IdP
• Email differs between IdP and 15Five
• SAML attributes (Name ID, Email) not mapped
• Subdomain contains uppercase letters, spaces or special characters

This guide also covers

• 15five sso not working
• 15five saml 403 error
• 15five 422 error login
• 15five single sign on setup

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