A recent project: a 200-employee industrial company where HR did everything manually — paper, Excel, disputes, lateness, forgotten leaves. Here are the real numbers and lessons learned.
Before: the situation
One HR staff member spent 40% of her time on:
- Daily attendance paper collection (30 minutes).
- Logging lateness in Excel (1 hour daily).
- Answering employee balance queries (twice daily, 15 min each).
- Monthly management report prep (full day).
- Annual/sick leave tracking.
Many errors: forgotten leave, wrong lateness calc, incorrect deductions.
The system we chose
Components:
- Biometric devices (fingerprint + face) at entry gates.
- HR software integrated with ERPNext.
- Mobile app for employees to check balances and request leaves.
- Automated reports weekly and monthly.
Device selection
We tested 3 brands:
- ZKTeco: cheapest, mid-quality, API is awkward.
- Hikvision: high quality, excellent API, 30% pricier.
- Suprema: best, but double ZKTeco's price.
We chose Hikvision for this client — price/quality balance. ~5,000 EGP per device, 4 devices needed (2 gates).
4-week rollout
Week 1: Install devices + API integration with ERPNext.
Week 2: Enroll employees (fingerprint + face) + testing.
Week 3: Mobile app + employee training.
Week 4: Parallel run with paper (validate accuracy).
From week 5: paper discontinued entirely.
Numbers after 3 months
| Metric | Before | After | Change |
|---|---|---|---|
| HR time on attendance | 40% | 8% | -80% |
| Lateness errors | 12/month | 2/month | -83% |
| Monthly report prep | Full day | Automated | 100% |
| Employee satisfaction | 60% | 92% | +53% |
Real ROI
Project cost:
- Devices: 20,000 EGP (4 × 5,000).
- ERPNext HR module setup: 25,000 EGP.
- Mobile app: 30,000 EGP.
- Training: 5,000 EGP.
- Total: 80,000 EGP
Annual savings:
- HR staff time (32 hrs/month × 12 × 60 EGP/hr) = 23,000 EGP.
- Reduced payroll errors = 8,000 EGP.
- Fewer employee disputes (sometimes needed lawyers) = 15,000 EGP.
- Productivity (employees arrive earlier) = 40,000 EGP (estimated).
- Annual total: 86,000 EGP
Payback: 11 months. After that, pure savings.
Field tips
- Buy devices with documented API. Cheap ones without API can't integrate with ERP.
- Use dual biometrics (finger + face) — fallback if one fails.
- Be flexible in week 1. Allow manual attendance correction if the system errs.
- Build a manager dashboard for real-time late/absent visibility.
- Mobile app is essential. When employees self-check balances, HR sheds 50% of queries.
Common mistakes we avoid
- Buying cheap devices without API then regretting it.
- Discontinuing paper on day 1 without a trial period.
- Not training managers on reports (the system gives data, but someone must read it).
- Single biometric (finger only) — many people have fingerprint issues.
Bottom line
HR + attendance isn't "technology" — it's an investment with clear numbers. Above 50 employees, ROI is positive within a year. Under 50, a simpler system (mobile app only, no devices) may suffice.
Need an attendance system? Tell us your headcount and work nature — we'll propose the right fit with cost and ROI estimate.