Where to look depends on whether you're using the current SSO setup or the legacy SAML-only setup.
If you see one SSO configuration option
A single SSO option on the Authentication page indicates you are using the latest version of our SSO.
The setup guidance for the current SSO flow — provider-specific steps, screenshots, and connection testing — is accessible inside the setup portal itself. If something isn't working, the portal's live connection test will tell you what's failing before you finish.
If you've completed setup and are running into a login issue, contact Rebrandly Support in the chatbot below with:
Which identity provider you're using.
The exact error message or a screenshot.
Whether the error happens before or after you're redirected back to Rebrandly.
If you see two configuration options
Two SSO options indicates you're using the older, legacy SSO connection.
These are the most common errors we see when setting up the legacy SSO.
Symptom | Likely cause | Fix |
"Domain not recognized" at login | Email domain not added, or typo in the domain | Re-check the SSO settings in Rebrandly. The domain must exactly match the email suffix. |
Redirect loops back to IdP | ACS URL in IdP doesn't match Rebrandly's | Re-copy the ACS URL from Rebrandly SSO settings into the IdP |
Login completes at IdP but lands on a Rebrandly error page | Missing or incorrect SAML claims | Verify both |
Nothing happens after IdP login | NameID not persistent, or format mismatch | Set NameID format to persistent/email address |
Invited user never receives the invite | Pre-existing free Rebrandly account using the same email | Contact Rebrandly Support to remove the conflicting account before re-inviting |
"It used to work, now it doesn't" | IdP certificate rotation on your side | Confirm your IdP certificate hasn't expired or rotated. Re-publish metadata if needed. |
If your issue isn't listed, contact Rebrandly Support in the chatbot below with:
Which IdP you're using.
The exact error message or screenshot.
If possible, a SAML tracer extension to capture SAML request/responses.