How to Calculate ERP ROI (With a Simple Worked Example)
A practical method for calculating ERP return on investment: which benefits to count, which to leave out, how to estimate costs honestly, and a worked example you can adapt.
Solution · Operations
Overview
ERP purchasing connects demand, approvals, orders, receipts and invoices, so every bill can be matched to what was ordered and received.
01Typical problems
Purchases made without approval or outside agreed suppliers.
Paying different prices for the same item.
Bills that don't match orders or receipts.
No measure of supplier performance.
02Capabilities
Internal requests converted to purchase orders.
Thresholds by amount, category or department.
Compare supplier quotes before ordering.
Agreed prices and lead times per supplier.
Bills checked against orders and receipts.
On-time, in-full and quality metrics.
03Workflow
Need raised by user, reorder rule or MRP.
Routed by rule to the right approver.
PO sent to supplier with agreed terms.
Goods or services confirmed.
Bill matched and scheduled for payment.
04 — Technical notes
Control policies — whether bills are matched against ordered or received quantities — are configured per product category, allowing services and goods to follow different rules.
Approval thresholds should be configuration, not code, so finance can adjust them as the business grows.
Where it applies
Insights
A practical method for calculating ERP return on investment: which benefits to count, which to leave out, how to estimate costs honestly, and a worked example you can adapt.
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FAQ
Yes, by amount, category, department or user.
Through a supplier portal or emailed confirmations.
Yes, document processing can extract bill data for matching, with human review.
Next step
We will review your procure-to-pay process.