Migration & cutover
What data comes across from a legacy system, what users should expect, and how admins verify migrated employees, payslips, attendance, finance, and devices inside Heimdallone.
If your organization is moving from a previous system, its data is brought into Heimdallone before you go live. This page explains what comes across, what to expect, and how to check it in the app.
Migration principle
Legacy data is a source and an intent — not automatic truth. Historical records are preserved exactly; known legacy mistakes are corrected against the official rules (for Guyana payroll, the GRA is the source of truth); nothing is copied blindly.
What gets migrated
| Area | What comes across | Where to find it |
|---|---|---|
| People & logins | Employees, their roles, and their sign-in accounts (passwords are never reset or weakened; Google sign-in carries over where used) | Employees, Migrated logins |
| Pay & history | Historical payslips (kept immutable) and the pay setup behind them | Payslips |
| Time | Attendance history, shifts, and rosters | Attendance |
| Finance | Chart of accounts, journals, and opening balances | General ledger |
| Devices | The biometric terminal and its punch history | Biometric devices |
What users should expect
- Migrated employees see a one-time welcome notice at first sign-in asking them to review their details — see Your first sign-in.
- The same password continues to work where sign-in could be carried over safely; otherwise the user is guided through a secure reset/invite. No placeholder emails are ever created — someone with no email simply has no login until HR adds one.
- Historical payslips look exactly as they did and cannot be edited.
What admins should verify in the app
If something looks wrong
- Don't edit history directly. Historical payslips are immutable; fixes go through an audited correction that records the reason and the exact differences.
- No-login employee who should have access? Add a real email and invite them — never invent a placeholder address.
- Finance opening balance looks off? Some legacy entries that didn't balance are intentionally left out; your accountant enters a corrected opening entry rather than Heimdallone fabricating one.
- For anything that doesn't reconcile, raise it with your administrator before the organization is finalized.
Going live
For what happens during the switch-over and what to confirm afterwards, see Go-live readiness.
Device setup
How admins bring a time-attendance terminal online in Heimdallone — registering the device, the on-site agent, and where to manage punches.
Migrated logins & access
How admins check migrated user access, how first-login and Google sign-in work, how no-login employees appear, and how to invite or reset users.