I am using Oracle Autonomous Database on OCI. I want to create a foreign key in one of my schemas that references a view in APEX_230200 schema. I executed the statement below using ADMIN user (which is AFAIK the highest privileged users in Autonomous Database):

grant REFERENCES on APEX_230200.apex_appl_acl_users TO myfin;

I got the following error:

grant REFERENCES on APEX_230200.apex_appl_acl_users TO myfin
Error report -
ORA-01031: insufficient privileges
01031. 00000 -  "insufficient privileges"
*Cause:    An attempt was made to perform a database operation without
           the necessary privileges.
*Action:   Ask your database administrator or designated security
           administrator to grant you the necessary privileges

What am I missing?