My project thet was perfectly working in acceptance, has an error SAML message in production.
“An unexpected error occured while creating a session”
When I check the SAML Logs
Could not create a session for the provided user principal 'firstname.lastname@example.org': Single Sign On unable to create new session: RFC6265 Cookie values may not contain character: [ ]
And the things that I don’t understand is that in acceptance it works perfectly not in production
Many thanks for your hep
Double check your Alias. It should not contain spaces. See also this forum post explaining the error: https://forum.mendixcloud.com/link/questions/88503