Logon failed for RESTful Web Services. Contact system administrator (SSO+HTTPS)

Hi guys

I’m having trouble configuring HTTPS access to the BI Launchpad of an SAP BOE system.

The installed product versions are:
SAP BOE 4.3 SP04 Patch 10
Single node system
Windows Server 2022 Operating System
CMS database on a remote Microsoft SQL Server 2022

I initially configured SSO with Active Directory, following SAP Note 2629070 for BI Launchpad and the guide SSO Configuration with Active Directory SAP Busine... - SAP Community for the CMC.

I haven’t had any problems: I can log in to both the CMC and the BI Fiori Launchpad in SSO.

I then configured Tomcat for HTTPS access following SAP note 1648573 (but I used the “keytool” format for the keystore).

At this point, I can access the CMC in SSO both in HTTP and in HTTPS without any problems.
Regarding the BI Fiori Launchpad, I have no problems using HTTP in SSO, but when I try to access it using HTTPS (port 8443), I get the following error:

Logon failed for RESTful Web Services. Contact system administrator.

As suggested in note 2576124, I changed the URL reported in the RESTful web service properties, in the CMC, to the value:

https://hostname.domain:8443/biprws

but it didn’t resolve the issue.

Since the client’s language is French, I also tried changing the REGION of the operating system of the machine on which the CMS runs as explained in SAP note 2944749, but it didn’t resolve the issue.

Finally, I tried configuring SSO for RestFul web services as well, as explained in SAP Note 2614257, but it didn’t resolve the issue.

Do you have any idea ?
Thank you very much.

We found that we had to configure the RESTful Web Service → HTTPS Configuration and Active Directory Configuration Settings sections of the WebApplicationContainerServer to get this to work. This was rather disappointing as we assumed that with the RESTFul web service moving to be hosted by Tomcat instead of WACS this would no longer be needed but this is what worked for us.