API returns empty values for custom DAC in Acumatica

Hi everyone,

I’m currently working with Acumatica and trying to expose a custom table via REST API. I created a custom API entity and endpoint, but the API response doesn't return the expected field values.
  
  I created a custom graph:

And the DAC:

I also created:

  A custom screen VX101010
 

A custom REST API endpoint, in which I manually added a new entity for webOrderTaxComparison and mapped the fields to the webOrderTaxComparison view.

Using Get API
  GET /entity/webOrderTaxComparison/20.200.001/webOrderTaxComparison

Since I created a separate custom API endpoint and manually mapped the fields, is there anything else I need to do for Acumatica to return the actual field values in the custom object?

  Any tips would be greatly appreciated!