Employee Sales Visit Tracking PWA

Field staff needed to log visits in areas with poor connectivity. Managers needed to see that data without chasing reps for reports.

Built an offline-first PWA using service workers. Data is captured and queued locally, then synced when connectivity returns. Push notifications alert managers when data comes in.

• Next.js PWA with service workers for offline-first data capture.
• Fetch API background sync — data queued offline, pushed when connectivity restores.
• Push notifications for real-time operational alerts.
• MongoDB document store for flexible visit records.

• Optimized field data capture — reps could log visits without network access.
• Improved operational visibility with real-time sync and push alerts for managers.

• Service worker cache-invalidation strategy for a data-heavy form app.
• Background sync conflict resolution when multiple offline sessions merged.