Smart Business Administrator Apps group is missing in HCP Portal site

Hi,
I am following tutorials:
Fiori Analytics on HANA Cloud Platform using Smart Business Service 1
Fiori Analytics on HANA Cloud Platform using Smart Business Service 2

Fiori Analytics on HANA Cloud Platform using Smart Business Service 3
In the third tutorial, in order to create a KPI, I need to configure Business System using "Configure Business System Service Discovery" app but relevant Group with app tile is missing in my HCP Portal site.
I've checked roles in Smart Business Service-->Roles and Portal-->Roles.
The roles are the same as recommended in
https://help.sap.com/viewer/180755043030459d9bc51f41c70f3c34/Cloud_Dev/en-US/e7feb611391d41ed9f5df48bafd65691.html?q=SmartBusinessAdministrator
Has anyone got an idea what's wrong?

Thank you, Irina.