Hi, Are you using Automation Suite? Are you configuring SAML at the host level (enabling the authentication for any org in the cluster) or at the org level?
We do not support metadata documents at the host level. Just at the org level.
There is a bug in our docs at the host level - Automation Suite - Configuring SSO: SAML 2.0 (uipath.com), and the comment is misplaced. I will take action to fix it.
The metadata URL will not work until you save. So you need to go thought all the steps , Test and Save and then the metadata URL will be active.
This was pretty confusing for me since I’m setting up with an On-Prem Active Directory and the people managing this wanted to have the UiPath Metadata URL first.