If a view involves a join condition, the UPDATE operation cannot be performed over the particular view in Virtual DataPort server. If you want to know more about the views that are updateable, you can refer to [Inserts, Updates and Deletes Over Views](https://community.denodo.com/docs/html/browse/7.0/vdp/vql/inserts_updates_and_deletes_over_views/inserts_updates_and_deletes_over_views) documentation for information.
Regarding the INSERT, I was able to insert values for ‘id’(primary key) & ‘registered_date’(timestamp) fields of the base view created from Teradata data source using POST body as mentioned below,
I would suggest you to validate field types and POST body timestamp field literal value syntax as per my example above and try again.
You can take a look at the [**IDU Requests**](https://community.denodo.com/docs/html/browse/7.0/vdp/administration/restful_architecture/restful_web_service/idu_requests) section of Virtual DataPort Administration Guide for more information.
Hope this helps!