That challenge has been around a while and have passed through v9 and v10 of Postman, each of these slightly changed some elements of the API Builder.
For that challenge, as long as you have imported the API/Collection and that you’re aware that the API Builder feature can be used, you should be good to submit this Collection in the solution request.
Ok thanks, yes i have left this challenge and continue the next ones. The goal is done for me.
But just for my understanding, this mock is just dead, that’s it ?