You created a list on a given screen of the application where you can edit its values (e.g. with a checkbox), however when doing that through the mobile app, the list is being displayed as read-only and you can't change its values.
Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.
SAP Cloud For Customer
The old mobile UI layout doesn't support editable lists.
You can enable the new UI for smartphone extended app in Company Settings, where the editable lists are now supported.
List; Edit; Mobile; Chrome; Extended App; Custom Solution; , KBA , AP-RC-UIF-RT , UI Framework Runtime , How To
SAP Cloud for Customer add-ins all versions ; SAP Cloud for Customer core applications all versions