FatihDemir

Hi, Maybe there is a policy for requiring mfa for accounts with privileged directory roles under Azure Active Directory > Security > Conditional Access Policies. Can you check it?

Hi again, You also need ApplicationImpersonation and Mailbox Search roles. Have you assigned these roles? Please see article: https://help.kaspersky.com/KS4MO365/1.0/en-US/143134.htm Thanks.

What is the total number of servers you have? As I understand you have 3 Windows 2016 FS. Right? You need 3 licenses then. You have 3 option for license type; Kaspersky Endpoint Security for Business Select Kaspersky Endpoint Security for Business Advanced Kaspersky Total Security for Business Note: Minimum 10 license must be purchased. You can install Endpoint Security version to the servers also there is a server dedicated product Kaspersky Security for Windows Servers. If you install Endpoint version on server you can not use some features (image below). All 3 products includes KS4WS. I suggest you to install KS4WS on these servers. Only those writing for workstations will not work on servers. Check the image: Also, check features of Kaspersky Security for Windows Server available in different protection solutions; https://support.kaspersky.com/12784 Thanks.

Hi, Do you have this role? To check go to https://protection.office.com/permissions link. Click “Security Administrator” role and click “Members”. If you are not a member of the group, you can add yourself as a member. Then try to create service account again. (It may take some time for the role to take effect.)