Which headers for an API request are implicitly filled by the SF?
I want to call an API and the error message is -4 - Unsuccessful (invalid headers).
I also use a header [{ "Key": "x-api-key", "Value": "123"}].
I have successfully called the API with the following headers in Postman.
Again there is too little information in the documentation and this costs me a lot of time to figure out by trial-and-error.