Key points
- Start with a measured baseline, not a broad promise.
- Separate time savings, avoided risks and additional revenue.
- Compare scenarios and track the result after launch with the same definitions.
Measure the current situation
Record how long a workflow takes, how many people touch it, how many corrections appear and how often work returns to an earlier step. For stock, track differences, shortages and money tied up. For sales, note response time and orders without a next step.
Without a baseline, every savings estimate is an opinion. You do not need to measure every minute perfectly, but you need the same definition before and after.
Separate types of outcomes
Time saved can free people to help customers or reduce repetitive work. Avoided errors can protect margin and customer relationships. Clearer stock can reduce unnecessary purchasing or lost sales.
Write potential revenue separately from reliable savings. More capacity does not automatically become more sales. Every result needs a verifiable assumption and an owner.
Calculate total cost
Include discovery, configuration, development, licences or subscriptions, integration, migration, testing, training, maintenance and internal time. Note the cost of scope changes and the period when old and new systems run together.
Compare the period in which the system will be used, not only the first invoice. A project with a higher initial cost may have a lower total cost when it removes workarounds, but the conclusion must be supported by your data.
Build scenarios
Create at least conservative, realistic and ambitious scenarios. Change order volume, time saved, error rate and team adoption. Calculate the payback period, but do not present it as a guarantee.
Add risks that can delay the result: unclean data, incomplete integration, no internal owner or weak adoption. A realistic ROI includes the conditions it depends on.
Check after launch
Decide in advance how you will compare results at 30, 60 and 90 days or across a full business cycle. Keep the same definitions for processing time, errors, orders and costs.
If the result differs from the estimate, find the cause. It may be a wrong rule, an unused workflow or an overly optimistic assumption. Measurement turns the project from a promise into a decision that can be corrected.
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Frequently asked questions
What is a good ROI for an ERP?
There is no universal threshold. A good ROI is connected to a measured baseline, total cost and the level of risk the company can accept.
Can we calculate ROI only from time saved?
Time is important, but include avoided errors, stock, protected orders, documents and the full project cost.
When should the result be measured?
Before the project and after launch at agreed intervals. For seasonal work, compare a relevant cycle instead of only the first few days.
