Group Feature (QR Code) | HAKOBUN User Guide

How-to Video

Watch a walkthrough of the group feature (Japanese and English narration).

How the group feature works (Japanese/English female narration)

1Open the Group screen

Tap "Group" (Join via QR & share meeting points) in the side menu (☰).

Group item in the side menu — "Group" item in the side menu

2Create a new group

If you're not yet part of any group, enter a "Display name" and tap "Create Group." Once created, an invite code and QR code are generated automatically.

Screen shown before joining a group (display name field, Create button)

3Invite others with a QR code

Once a group is created, the screen shows a QR code for the invite, along with the invite code as text. Show this to other members and have them follow these steps:

The person joining taps "Scan QR code to join" on the Group screen
Their camera opens — have them scan the QR code shown on your screen
On a successful scan, they join the group automatically

To reissue the QR code, tap "Regenerate invite code" (the old QR code becomes invalid).

Invite code and QR code screen — Invite code / QR code display screen

While scanning, the camera view fills the entire screen, with the message "Scan the QR code" and a cancel button overlaid on top.

Camera access is required to scan a QR code. If it hasn't been granted, a prompt appears — tap "Open Settings" to enable the camera in your device settings.

4Check your members

The "Members" section on the Group screen lists the display names of everyone currently in the group.

5Share a meeting point

Tap "Share meeting point," then tap a location on the map to select it. Next, check which members you want to send it to and send.

This isn't a broadcast to the whole group — it's sent privately, only to the members you check.

Meeting point and recipient selection screen — Meeting point selection and recipient member selection screen

6Delete a group / leave a group

Use the buttons at the bottom of the Group screen.

If you're the owner (creator): tap "Delete group." This permanently removes the invite code and every member's participation — it cannot be undone.
If you're a member: tap "Leave group" to remove only yourself from the group.

Both actions show a confirmation dialog before taking effect.

In-app usage guide

You can also review the same 3-step explanation (with screenshots) at any time by tapping "See how the group feature works" on the Group screen.

Learned Location Management (automatic map labels)

Whenever you mark a delivery as complete, that location's address, lot number, and recipient name are automatically recorded, and the map permanently displays a label in the format "lot number: name" (e.g. 3-15: Tanaka) at that spot. This makes it easier to recognize a familiar delivery spot at a glance the next time you're there.

If you belong to a group, this learned data is shared within the group, so every member sees the same labels on their map. If you don't belong to a group, it's stored only on your device.

A location with the same coordinates and address is automatically overwritten with the latest information each time you complete a delivery there — no manual entry needed.

To correct a mislearned or unwanted location, open "Learned Location Management" from the side menu (☰) and tap "Delete" on the relevant entry.

When no locations have been learned yet, the "Learned Location Management" screen shows "No locations have been learned yet. They'll be recorded automatically when you complete a delivery."