I have a feature class that has three separate relationship classes (being one table and two feature classes) built in an SQL server enterprise geodatabase. I have published and added to an ArcOnline map as a feature server then created an app. The relationship class involving the table works perfectly however the two remaining relationship classes that have features classes do not. I cannot add new feature classes that relate back to their related feature class. Does ArcOnline support feature class/feature class relationships or only feature class/table relationships? I have notice that the relationships work fine if I manually copy the global ID to the new related feature. I have also noticed that they work fine in Collector. Thanks.