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DenmarkRetail and e-commerce2021 – ongoing

Brødrene A & O Johansen

AI test to find customers who had stopped buying

A&O Johansen's AI found 70% of lost customers in a test, against 30% found by staff

WorkingCompany's own claim

Problem

The Danish trade company wanted to know which customers had stopped buying. Staff could only spot a part of them by hand.

Approach

The company ran a test on two years of customer data to find customers who had left. Staff and the AI each worked from the data. The AI could handle many more parameters than people. The article does not name a vendor, and it says the company first looked at AI a little over four years earlier.

Results

70%share of departed customers the AI identified in the test, against 30% identified by staff, per the company's e-commerce directorCompany's own claim[1]

Takeaway

A back-test on past customer data gave the company a direct comparison between manual and AI detection. The result came from a test, not from a live campaign.

Categories

Business function
Marketing and sales
Innovation type
Process innovation
Evidence
Company's own claim

Sources

Source summaries

[1]Dansk Erhverv28 Sep 2021

A Danish business association article on AI results in Danish firms. It quotes A&O Johansen's e-commerce director on a churn test over two years of customer data: staff found 30% of departed customers and the AI found 70%.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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