Thank you Derek. The data are municipal infrastructure feature classes created by a consultant using Esri Canada's Canadian Municipal Data Model (CMDM), and published in four feature services in ArcGIS Server 10.5.1
We do not use Portal here, yet your mention of the need for AGOL or Portal might be pertinent, because as things stand, I simply have the feature services loaded into AGOL, rather than any of their feature classes being in there as individual feature layers, if that's what is needed. But so far I have only tried editing by loading the data into ArcMap from the feature service in the GIS Server connection I can access it from.
But I have another issue that may or may not be related. Of the four feature datasets, on one I cannot enable sync capability without getting this error:
ERROR: Service failed to start,
Machine: WA-IO-KUATO.BCMAIL.LOCAL [ Layer(s) or table(s) are not configured for Sync.]
GlobalIDs are present and the layers are non-versioned, but I cannot access any archiving control on the feature dataset The archiving options in the context menu are greyed out. This must be the cause of the error, i.e. archiving is not enabled.
![Context menu of feature dataset showing archiving choices unavailable](/legacyfs/online/430349_disabled_archiving.PNG)
Yet for the other three feature datasets, I do have full and proper control. How can I get around this to enable archiving on this specific feature dataset?
Thanks,
Justin