What OpenAPI specification required for "Microsoft Entra ID SSO authentication"

Question

I have created an API plugins in agents, My API is in Azure APIM, I wan to do "Microsoft Entra ID SSO authentication" configuration to call api in APIM, I followed all the steps mentioned in the section but still It is not able to sign-in, I am getting error "https://titles.msit.mos.microsoft.com/catalog/v1/users/titles/U_{XXX}/signInInfo?authConfigId={myauthConfigId}"

{

"error": {

    "code": "NotFound",

    "message": "There was an error processing the request"

}

}

Though {myauthConfigId} exists, I have enabled developer mode still no more errro details.

Wanted to check what would be the OpenAPI specification file confiugration required for "Microsoft Entra ID SSO authentication" since these details not mentioned in the section.