For workflows that involve working in disconnected environments for several weeks or months before obtaining another network connection, any map that has been downloaded needs to remain accessible by Fieldworker.
However, depending on the type of organization, there are certain conditions where a user gets automatically signed out:
Note: If working with Collector Classic during these periods of extended offline use, Esri recommends enabling Airplane Mode while out in a disconnected environment, after the maps have been downloaded. This helps prevent the app from trying to connect to the internet in the event it detects one, which might require the user to sign back in to the organization. If working with an external GNSS receiver, disable Wi-Fi/Cellular connectivity settings as opposed to enabling Airplane Mode, as it might affect the Bluetooth connection.