The "Preparing data for offline use" help document says that there are two possible configurations for feature access that will work;
- The read-only configuration (Query and Sync)
- Editable data configuration (Create, Delete, Query, Sync, Update).
As far as I can tell, only the editable data configuration works.
Maps do not show up in collector unless they have at least one editable feature layer. The map I am testing has two feature layers. When both are fully editible, I can take the map offline. When one is set to the read-only configuration (just Query and Sync Feature Access), the map looks like it is available to take offline, but I get an error when I click the download button.