Configuring a database thing with service

I am trying to configure a database thing with a service.
Followed all the steps mentioned in below post

https://community.ptc.com/t5/IoT-Tech-Tips/Steps-to-create-a-External-Relational-Database-Thing-and-update/m-p/534858/highlight/false#M574

I am getting an error saying the "configuration structure does not match". Since this post seems 2-3 years older, is there any chance the schema has changed? Has anyone tried configuring a database thing on Thingworx 8.5?