Q: In iClient for javascript, when you use EditFeaturesService to edit the data, why the result returns Fail, and the 500 error throws?
A: In this case, please check whether allow editing when the data service is published. Then check whether the url of the data service is written correctly. The url of the data service needs to be written to the dataset name. You don't need to set the geometry's id when you add features.
