Field Maps offline editing workflows within ArcGIS Online are currently limited by replica ownership constraints. When multiple users work offline concurrently from a shared web map while editing hosted feature layers, only the map owner can successfully sync edits. This results in persistent “Service error code 400: Unable to synchronize replica” errors for all other users who attempt to use either managed offline areas or their own map areas created in the app, even with users having the appropriate user roles to properly edit this data and data being shared correctly with other users.
We have a similar web map setup in our ArcGIS Enterprise environment with layers referenced from a registered SQL SDE data store, yet this works fine as the replica rules are different in this environment which allows offline multi-user editing.
We also cannot transfer map ownership before fieldwork due to admin overhead and concurrent multi-user operations. Shared Update Groups do not resolve this issue and prevent the use of managed offline areas.
We urgently need support for:
- Shared replica ownership or decoupling replica from map ownership.
- Multi-user offline sync from a single shared web map.
- Managed offline areas within Shared Update Groups.
