Attendance Check-In & Offline PWA Sync

The Attendance module records member participation across liturgies, Sunday school classes, and parish events. Built with Progressive Web App (PWA) technology, Koinonia OS supports seamless check-in even when internet connectivity drops.

1. Check-In Methods Overview

Koinonia OS offers three versatile check-in methods:

• Kiosk QR Code Scanner: Members present their personal app QR code to a tablet scanner at the entrance.

• Single Name Lookup: Servants search for a member’s name and tap Check In.

• Bulk Class Roster Sheet: Sunday school teachers select entire classrooms or groups on a single screen and mark Present, Late, or Absent in bulk.

2. How to Use the Bulk Attendance Sheet

1. Navigate to Attendance > Bulk Entry.

2. Select the target Event / Service and Class or Group.

3. A full roster list will populate. Click Mark All Present or tap individual member statuses:

   • [ Present ]
4. [ Late ]
5. [ Absent ]

6. Add optional absence reasons or pastoral follow-up notes.

7. Click Submit Attendance Session.

3. Offline Check-In & Auto-Sync Engine

When internet is unavailable:

1. A yellow banner appears: Offline Mode Active — Records Queued Locally.

2. Servants can continue recording attendance normally without interruption.

3. Records are safely saved in local browser storage (IndexedDB).

4. As soon as Wi-Fi or cellular signal is re-established, the background SyncManager automatically pushes queued records to the database and updates engagement statistics.