Sending database to an endpoint with API connector

Hello ,

I am new to Bubble but I am trying ti build an app. How can I pass database fields through an API an reference fields in the body of a POST request??
I have looked everywhere can’t seem to understand how to reference my data in the body of my request. DO I need Data API activated is it a problem with privacy?

Thank you for your help .

You probably have the ‘Private’ checkbox activated.
Private parameters are stored in your servers and cannot be seen/changed by the end-user.

Have you tried unchecking this checkbox?
If this is not it, can you share a screenshot of your API Connector setup