How to Link a Device for Staff Sign-In

For a staff member to be able to sign in to the app with a PIN on a point's tablet or phone, the device first needs to be linked once.

1. Open the point → "Devices" → "Link Device".
2. If you are setting up the device you are currently working on — click "Link This Device": it activates immediately, and this same device will remember you personally (useful for the "How to Log In as an Owner on an Employee's Device" article).
3. If you are setting up a different device — an activation link and QR code will appear (); open that link (or scan the QR code) right on the device you need.
4. Give the device a clear name, for example "Tablet at the Entrance".
5. If this device will work at several points — turn on "Roaming — one device for multiple points": the staff member will be able to switch points themselves right in the app, without a new activation link.
6. If printing is set up on the device — turn on "Has a Printer" and choose the roll width (58mm/80mm/A4). This is a setting specific to this device — do not confuse it with the general printing switch in Settings → System.

What to Do If… #

…a device is no longer in use? Remove it from the list (icon ) — the staff member will no longer be able to sign in from it; they will be able to sign in again with a new link or QR code.

…the printer does not show up when printing on Android? You usually need a separate print-service app (for example, ESCPOS Bluetooth Print Service) — without it, the system will not see the Bluetooth printer.

…a staff member tapped "Print" and nothing printed? The app does not show a separate printing error — the button just locks for 4 seconds after being tapped, to protect the printer from a repeat send. If nothing came out, the reason is always on the device/printer side (out of paper, out of charge, not connected via Bluetooth) — check the printer itself or its print-service app; RentOS does not report failures like this.