weblogic MT security realms for partitions

We are in the process of upgrading our 11g domains to 12c and will like to use the new partition feature provided in 12.2.1.

We will like to configure separate security realms for each partition so that user of one partition cannot access other partition in the same domain. Refering to oracle documentations, we created security realms for each partition, but the users in those security realms cannot access weblogic. Logs do not show any activity.

So as per that documentation this is what i want:

Under DOMAIN_1 ---> i have 2 partitions: PARTITION-0 and PARTITION-1 ---> each partition will have their own security realm since i dont want users to have access to all partitions,