Hi @ereid7
I was struggling too with the custom auth some days ago and since it is not too well documented it took me a while to configure it correctly. There still seems to be a bug with an unwanted authorization screen that pops up (maybe you don't have that, but we did and still have it).
What I see from your config which is clearly different to mine is the header.
Here is the header I am using, which works:
My variable looks similar setup like yours, but I named it "CUSTOM_AUTH_TOKEN" to avoid the same name Retool is using. Maybe you can try the same name + same header and see whether it helps.
You can click on "Preview" when you run a query and should be able to see on the "API Request" tab the details of your request. There you can verify the correct URL and the correct authorization. If you don't see the correct API token there, you can be sure that something is wrong in your custom auth flow config.
