Arsenault

Written by ERP practitioners

Thinking about replacing your legacy ERP? Start here.

Arsenault is an independent resource on enterprise software transformation. We write the honest versions of the cost, timeline, risk, data and change-management questions that sit behind every major ERP decision. No vendor pitch. One practitioner's view.

Read about migration costs Latest articles

Recent guidance

Documenting the real line-by-line cost of an ERP migration

Most read

How Much Does a Legacy ERP Migration Really Cost in 2026?

A line-by-line look at the £1.5m to £12m budget ranges we see on real enterprise projects, and the cost lines most plans miss.

Mapping out the months that make up an ERP replacement timeline

Timeline

How Long Does a Full ERP System Replacement Take?

Why a reasonable estimate stretches from 6 to 18 months, and what actually drives the schedule on the ground.

Weighing the price of deferring a legacy ERP migration

Decision

The Cost of Waiting Another Year on Your Legacy ERP

Delaying a migration is a decision too, with a price tag. Here is how to put a number on deferral.

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