Introduction

The challenge:

Sustaining an impact beyond one-time events

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STIENDA is Samsung's official store in Uruguay. As an electronics retailer, it faces a common challenge: its business relies on one-off campaigns (Cyber Monday, Black Friday, product launches). Between events, its customer base becomes inactive. Customers who used to shop there disappear. Revenue drops to zero.
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The problem is real: ‍

Without automation, revenue comes to a halt.
With it, that doesn't happen. They tested this out unintentionally in June.

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Problem

The experiment:

What happens when they turn the automation system off and on?
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Between March and May 2026, STIENDA shifted its focus away from automation. As a result, revenue attributed to Data4Sales fell from USD 445.9K (March) to USD 32.2K (May).

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A drop of -93%.

It was accidental. But revealing.

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When they resumed their focus on Cyber Monday (May through June), the automation kicked in again.

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The result was devastating:
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‍+1.126% growth in one month.

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Strategy

The result:

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54 actions that resulted in

‍USD 394.6K
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In June, STIENDA carried out 54 automated actions focused on Cyber Monday.

No one-off campaigns. Consistent flows:
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Reactivating Inactive Customers
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A reminder to whoever left their cart behind
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Offer a complementary product to customers who have already purchased
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Filter by category
^{(Samsung Galaxy, home appliances, accessories)}
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Perfect timing (before, during, and after the event)

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Monthly revenue: USD 394.6K attributed.
That is, 25% of total revenue for June.
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To put it another way: 1 out of every 4 orders in June came from automation.

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Results

The breakdown:

Where is the impact?
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New customers: ‍

+116%

Compared to the previous month's average, June brought in 116% more new customers. This isn't paid traffic. It's automation that identifies prospects and converts them.

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Buyback:

‍+134%

Compared to May, repurchase rates rose 134%. Customers who had made a single purchase returned. Automation reminded them and offered them something relevant at just the right moment.

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Recovered customers:

‍+130%

Of customers labeled as "at risk of churn," STIENDA retained 130% more in June than in May. People who were already on the verge of leaving came back.

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The secret:

Automation ≠ "set it and forget it"
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This isn't about sending a generic email to the entire database. STIENDA's 54 actions were:
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Specific:
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Each campaign targeted a specific segment (Galaxy buyers, home appliance buyers, etc.)
Differentiated timing (customers who purchased 7 days ago vs. 30 days ago receive different messages)

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Always active:
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Not just on Cyber Monday, but for 6 months in a row
Dormant customers were constantly being reactivated
The customer base did not shrink between periods; it grew by 28.5% in H1

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With clear attribution:
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We do not "believe that automation helped"
D4S calculated that exactly 20.8% of the orders in June came from these 54 stocks
Attributed revenue: USD 394.6K. Net.

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The Final Issue

In the first half of 2026, automation accounted for 28% of STIENDA's revenue. In June alone, it accounted for 25%.

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If we extrapolate: over the course of a full year, automation would account for nearly 1 out of every 3 dollars that STIENDA sells.

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All without a human having to run 54 campaigns manually every month. No Excel. No delays. No errors. Just machines that understand the customer, predict what to buy, deliver at the exact right time, and send personalized messages.

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