Comparison

Replacing a legacy ERP

Legacy and custom-built ERPs often still do the core job, but become expensive to change, depend on one developer or vendor, and lack browser access, APIs and modern compliance (e-invoice). A managed cloud ERP replaces the server, upgrades, backups and compliance updates with a subscription, while your data and workflows are migrated in phases.

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Side-by-side

Capability	On-premise / legacy ERP	WebSoftOS
Hosting, backups, security patches	In-house	Managed
Regulatory updates (GST, payroll)	Custom work	Included
Browser & mobile access	Often limited	Yes
REST API & integrations	Rare	Yes
Fits existing processes	Exactly	Configured; gaps assessed in demo

Based on publicly available product information as of 2026-10-04. Features change — check the vendor's current documentation and pricing.

Where On-premise / legacy ERP is stronger

Already fits your processes exactly
No retraining cost
Fully paid for

Where businesses outgrow On-premise / legacy ERP

Key-person dependency on the original developer
Server, backup and security are your problem
Slow to add GST/e-invoice and other regulatory changes
No APIs or AI on top of data

Migrating to WebSoftOS

Legacy data is extracted (SQL, CSV or Excel), mapped and loaded in phases, with a parallel run for finance and payroll.

Frequently asked questions

How do we avoid losing historical data?

Open transactions and balances move into the new ERP; full history can be loaded or kept in a read-only archive, depending on volume and audit needs.

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