SAML is tied to the Service Provider Hostname, hence when changing to a custom domain there will be required changes to reconfigure aspects of SAML.
The required steps may vary with the Identify Provider (IDP) or custom configurations, and this KB article is intended to be a guide to assist with the common changes. For further assistance please consult your IDP provider, and reach out to Appian Support through a support case.
Table of Contents:
For Appian SAML configurations
The hostname is referenced in:
The hostname may also be referenced in:
SP Metadata
To regenerate the SP Metadata with the new customer domain:
By Preference:
Required:
Even if there are no manual changes to the SP Settings, you will still regenerate the SP Metadata to point to the new domain, this is because the location attributes for the SAML assertion reference the hostname.
Please see the following resource for more information on service provider metadata.
Additionally, please see the following for more assistance regenerating the certificate.
IDP
If you have made any changes to the SP configurations, these should be matched in the IDP.
External to Appian, please work with your IDP provider to determine where the IDP references the domain of the SP and change the value to reflect the new hostname.
If your IDP does not have a field to upload the service provider metadata file. Please see the following resource to assist with updating the configurations in the IDP.
Saving Changes to SAML Configuration in Appian
After changing the SAML configuration in Appian:
For further guidance, please see SAML configuration in Appian.
User Start Pages
If you have a User Start Page configured, change the user start page configuration to reflect the new domain.
Recommended
Prior to changing the Domain, we recommend ensuring a system administrator user is outside the SAML group. If any issues occur the user can access the admin console and disable SAML to allow user access.
For further questions on SAML see our SAML FAQ.
This article applies to all versions of Appian Cloud.
Last Reviewed: July 2025