e2-first-dish: Error: AccessDenied: The request is not authorized, HTTP status: Unauthorized

[BSlap]

I can walk through the notebook until the last cell (Step 3.3: Set your input to the templated prompt and have the kernel process it).
Cell outputs an error: Error: AccessDenied: The request is not authorized, HTTP status: Unauthorized

I've been looking around on Discord already and it seems there is a difference in API keys (service key vs regular key)?
But I don't get this.

I have davinci completions deployment active in Azure OpenAI Studio.

Edit: found a soluation! When I fill out all the credentials (model, endpoint, API-key) directly in the cell where it refers to the config.js file, everything works.