We have an Oracle 12c database in Amazon RDS and the listener running in an EC2 Glassfish instance. We discovered that in RDS the Apex Internal Admin user does not have all the privileges needed to run the multiple workspace creation using email addresses. We have gotten it to work for creating individual workspace/schemas. Does anyone know of a way to get this multiple workspace creation working in an Amazon RDS? What privileges are missing for this admin user? Is there any workaround for this issue?