Biometric Integration for ERPNext
Direct device → ERPNext biometric sync (no middle systems, no recurring connector costs). Fingerprint, thumb, and face check-ins captured in real time, with operator controls and audit-grade traceability.
Why attendance systems fail in real operations
Biometric devices are reliable at capturing events, but the operational failures happen after: delayed sync, missing logs, full device storage, and manual exports that break auditability.
If the device is offline or the integration is fragile, HR teams end up chasing logs and adjusting attendance manually.
- Check-ins appear late or not at all in ERPNext.
- Manual exports create gaps and inconsistent records.
- Disputes become slow because there’s no clear evidence trail.
Many devices have limited log capacity. Once full, they overwrite or stop capturing events.
- Devices fill up quietly - and operations only discover later.
- Log retention becomes unpredictable and breaks investigations.
- The ‘device is the source of truth’ becomes a risk.
Direct sync with operational controls
This is not a ‘connector’. It is an operable integration designed for real attendance workflows and real device constraints.
Attendance logs synchronize from the biometric device into ERPNext automatically, so your HR system stays current without manual intervention.
If there’s a network delay, operators can trigger a pull from ERPNext to fetch recent logs on demand - without touching the device UI.
Check-in/out logs are automatically cleared from the device at safe intervals (after confirmed sync) to prevent storage from filling up.
Biometric modes supported
Capture attendance via the biometric methods organizations actually use - all flowing into ERPNext.
Reliable identity capture with clean log mapping into ERPNext attendance records.
Thumb scan support for environments where full fingerprint capture varies by device model.
Face recognition events synced into ERPNext for frictionless check-in workflows.
Good integration behaviors (the things that prevent chaos)
A biometric integration must be operable. These behaviors reduce disputes, prevent data drift, and make audits easier.
Devices can resend logs during reconnects. The system ingests logs deterministically so duplicates don’t become duplicate check-ins.
- Deterministic keys per event prevent double posting.
- Replays are treated as normal and harmless.
- Operators can pull without fear of duplicating records.
Attendance disputes need evidence. We retain enough metadata to investigate when needed.
- Evidence trail for sync runs (what was fetched, when, and outcome).
- Visibility into missing windows (what time range is not yet synced).
- Clear exception handling when a device is unreachable.
The integration assumes devices will be offline sometimes. Sync recovers cleanly without manual exports.
- Automatic sync when connectivity returns.
- On-demand pull from ERPNext for delayed periods.
- No dependency on a third-party relay service.
Devices fail when storage is full or logs get corrupted. Automatic cleanup keeps devices healthy and prevents silent data loss.
- Safe cleanup policy: delete only after confirmed sync.
- Periodic maintenance to prevent log buildup.
- Reduced risk of devices stopping capture due to full memory.
How we implement
We implement for correctness first (mapping + duplicates + evidence), then optimize for speed and operations.
Connect devices, confirm identification mapping, define sync windows, and validate ERPNext posting.
- Connect device(s) directly to ERPNext endpoint.
- Confirm employee mapping strategy (IDs and attribution).
- Run controlled sync tests and validate attendance outcomes.
Enable real-time sync, train operators, and configure pull requests + cleanup intervals.
- Turn on real-time sync and monitor for delays.
- Enable pull request workflow from ERPNext for exceptions.
- Configure log cleanup intervals to prevent device storage issues.
Want biometric attendance that stays synced and operable?
We’ll review your devices, sites, employee volume, and HR workflows - then propose a rollout that keeps ERPNext up-to-date, prevents device storage issues, and supports investigations.