The user Miva.TestAccount6@resolutionlife.com.au is part of AD group.
AD Group is mapped to DB Role (DB_OWNER)
When user Miva.TestAccount6@resolutionlife.com.au try to create scheama we are getting below error
Create Scheam [test123442];
Msg 2760, Level 16, State 1, Line 5
The specified schema name "Miva.TestAccount6@resolutionlife.com.au" either does not exist or you do not have permission to use it.
Msg 2759, Level 16, State 0, Line 5
CREATE SCHEMA failed due to previous errors.
When i created a normal ad user rather than ad group, user able to create the schema