Frictionless Crésus migration

Migrate from Crésus to Numezis

Move from installed files to a governed cloud platform with real-time multi-user access. File import, guided validation, secure go-live.

What we migrate from Crésus

  • Customers, vendors, and contact records
  • Issued and received invoices with their payment status
  • Chart of accounts, VAT codes, and the full journal history
  • Bank transactions, QR-bill references, and reconciliations
  • Employee master data and payroll history from Crésus Salaires
  • Opening balances and prior financial years for comparatives

A clear 30 / 60 / 90-day plan

  1. 30 days

    Audit & Planning

    Audit of your Crésus modules, licences, and files, then migration planning.

    • Inventory of your Crésus files per module and per financial year
    • Review of your chart of accounts, VAT codes, and payroll setup
    • Source -> Numezis mapping with a validated correspondence table
  2. 60 days

    Migration & Training

    Data migration, multi-user setup, and team training.

    • Full backup before import with complete audit trail
    • Pilot migration in a test environment, then targeted fixes
    • Team training with an operational runbook
  3. 90 days

    Validation & Go-Live

    Final validation and go-live.

    • Consistency tests: balances, VAT, reconciliation, payroll totals
    • Final validation with your fiduciary and business leads
    • Cutover, go-live, and reinforced post-launch support

Why migration is easier with Numezis

API-first architecture

API connectors and resilient import pipelines to sync your data without manual patchwork.

Assisted mapping and validation

A mapping engine with consistency checks (fields, dependencies, balances) before every import.

Safe and reversible migration

Versioned backups, dry-runs, audit trail, and rollback strategy to minimize operational risk.

Real-time go-live observability

Migration dashboard, targeted alerts, and hypercare to stabilize production quickly.

Frequently asked questions about Crésus migration

How long does the migration take?

On average 30 to 60 days depending on which modules you use and how many financial years you carry over.

Do we keep Swissdec-compliant payroll?

Yes. Crésus Salaires is Swissdec-certified and Numezis payroll is too, so declarations continue uninterrupted.

Will my operations be interrupted?

No, you keep working in Crésus throughout the transition. We cut over only once the consistency tests pass.

What support is offered?

Our Swiss team supports you in French and German at every step. First call is free.

Move to Numezis with full control

We orchestrate export, mapping, backup, tests, and go-live for a simple, fast, and reliable transition.