I do not get the SAML option under Instance Security.
Using Oracle database 19.17.0.0.0, APEX 22.2, ORDS 21.4.1
I have set the SAML_ENABLE to 'Y' but the SAML option still does not show up under Development Environment Authentication Schemes. I have run the exec sys.validate_apex and it reports APEX is good to go. I have added the IDP to the CrossOrigins setting in the ORDS defaults.xml file.
I can set the SAML parameters manually but get a 403 on the IDP callback after authenticating with our IDP
"GET /ords/apex_authentication.saml_callback HTTP/1.1" 200 234
"POST /ords/apex_authentication.saml_callback HTTP/1.1" 403 16147
I have manually set most of the SAML parameters except our private key file exceeds the 3000-character limit and the APEX Certificate appears to want the key installed first.