I would like to ensure an attribute on a feature service layer is always unique, and automatically populates with the next value for newly collected features. For example, Manhole_ID is structured as ST123. So when a new feature is collected, I would like the new features value to be ST124.
I can get this to work for data stored in a geodatabase using the Create Database Sequence tool and the NextSequenceValue in Arcade, but I don't know how to accomplish this with features stored in AGOL. Is this possible?
