Why isn't my API endpoint not accepted?

[Bureau_G (Bert-Jan)]

Thanks for your replies. I tried the Endpoint with and without quotes. In both cases I received the error message. Also when I used a variable as endpoint. But it is the same as going to the doctor: A week long your back is hurting like h*ll, but after you made an appointment with the docter the pain is gone. In this case after your answers the endpoint with quotes works just fine. Again: thanks for the replies!!!