Oauth 1.0 connection

Hey everyone, I’m new to the platform.

I’ve been trying to create a custom app between bricklink and the Make service. This connection is done with Oauth 1.0.

The problem i’m having atm is that I get a response from bricklink that says the consumer key is empty (null).

my base is:

and my connection is:

My question is what am i missing / doing wrong?

thanks in advance :smiley: