question

I registered an Azure Function as a function and called it from C #, but it is not recognizedHow can I do this?

PlayFab.ServerModels.ExecuteCloudScriptServerRequest req = new PlayFab.ServerModels.ExecuteCloudScriptServerRequest
                {
                    PlayFabId = "XXXXXXXXXXXXX",
                    FunctionName = "AddInventoryItem",
                    FunctionParameter = param,
                    GeneratePlayStreamEvent = true
                };
                PlayFabResult<PlayFab.ServerModels.ExecuteCloudScriptResult> ret = await PlayFab.PlayFabServerAPI.ExecuteCloudScriptAsync(req);