OAuth Secret not found: error


I tried to use “Add pins to your Pinterest boards from new RSS feed items”.
I added “pinterestBoardId” parameter, but I can’t add “pinterestOAuth” parameter so I got the error:

Error Secret not found: pinterestOAuth. Make sure to connect to the service in step parameters.

In other services I grant an access to my Pinterest account for the service.
Can I do it with nekton.ai in the same way?