3743752 - MS Entra ID - OpenID provider cannot process the request because the configuration is incorrect

After the configuration of Microsoft Entra ID as OpenID Connect corporate IdP in Cloud Identity Services, the OIDC validation returns error:

"OpenID provider cannot process the request because the configuration is incorrect. Please contact your system administrator."

Error logs or the error page URL itself contains the error code: AADSTS...

Cloud Identity Services

AADSTS, AADSTS9002325, proof, key, code, exchange, cross, origin, authorization, code, redemption, MS, Microsoft, Entra, ID, IAS, CIS, Identity, Authentication, openid, open, connect, oidc , KBA , BC-IAM-IDS , Identity Authentication Service , BC-IAM-OID , OIDC/OAUTH2 component in SAP Cloud Identity Services , Problem