I'm working with ArcGIS Portal and attempting to set up relationship tables to create subforms in Collector as per this article...Related Tables – Exploring New Ways to use Collector for ArcGIS | ArcGIS Blog
I've managed to get everything loaded and even added one entry to the sub table. When I try and add a second I get this error message when trying to finalise the input "The operation couldn't be completed. Database error has occurred.". My relationship class includes one to many so I'm confused why this doesn't work.
Am I missing something, or a setting?
Or, is this because Portal, rather than ArcGIS Online, doesn't fully support this feature. If so when will it be available as it would be incredibly useful