with SOGO via web access I shared the “user A” address book for another “user B” with subscription. Connecting via web with “user B” the “user A” address book is shown and I have enabled EAS. In Outlook (EAS), with the “user A” account, only the personal address book is visible and not the shared address book.
thanks #stephdl, it is enabled. I entered SOGO with user B ", in the calendars there is the "user A"calendar under the subscritt entry, activated Activesync in Properties but in outlook you don’t see