Traditional sampling is costly — it requires dedicated staff, booths, and venue permits, while offering little control or customer data. Dropfoods introduces O2O Smart Sampling — automated product distribution via smart vending machines with 1 user = 1 product control, real-time tracking, and first-party data collection. Successfully deployed for Nestle (Lavie) with 18,000 products across 88 locations.

1. What is O2O Smart Sampling?

O2O (Online-to-Offline) Smart Sampling combines digital engagement on the machine screen with real product experience — all happening at the point of sale, with zero staff and zero booth setup required.

Unlike traditional sampling (promoters standing at supermarkets and booths), O2O Smart Sampling on Dropfoods leverages 300+ smart vending machines as a distribution channel — combining digital engagement (surveys, games, QR codes) with controlled product dispensing.

❌ Traditional Sampling

  • On-site staff required (promoters)
  • Booth setup, logistics costs
  • No control: same person can take multiple samples
  • No customer data collection
  • Delayed reports, manual tracking
  • Limited to business hours

✅ O2O Smart Sampling — Dropfoods

  • Fully automated 24/7, zero staff
  • Uses existing vending machines
  • 1 user = 1 product (OTP verification)
  • Collects phone, email, survey data
  • Real-time dashboard, per-unit tracking
  • Active 7am–10pm, 7 days/week

2. How It Works — 4 Steps

End-to-end flow from engagement → verification → product delivery

Step 1

Engage

Customer participates in survey / game on the machine screen

Step 2

Landing Page

Redirected to Landing Page → fills in info (phone, email...)

Step 3

OTP Verify

Receives OTP code via phone → enters code on machine

Step 4

Get Sample

Machine automatically dispenses the free sample product

🔒 Absolute Control

  • Each phone number can receive maximum 1 product across the entire system
  • Real-time OTP verification — zero fraud possible
  • Per-unit tracking: who received, which machine, what time
  • Consolidated dashboard for Brand and Agency

3. Case Study: Nestle Lavie × Dropfoods

18,000 sampling products across 88 locations in Ho Chi Minh City

18,000
Sample Products
88
Locations
1
Month Duration
100%
OTP Controlled
Category Details
Products 18,000 promotional products:
• 3,600 × Lavie Mineral Water 500ml
• 14,400 × Lavie Light Flavor 500ml
Coverage 88 vending points across Ho Chi Minh City
Mechanism Lavie survey on machine screen → Landing Page → complete survey → receive OTP → enter code → receive free product.
Each customer receives maximum 1 product
Duration 1 month
Data Collected Customer phone numbers, survey results, machine location, product claim time

💡 Insight from Nestle Lavie

Traditional sampling would require dozens of promoters across 88 locations, plus booth costs and management overhead. With O2O Smart Sampling, Nestle needed zero on-site staff — Dropfoods machines handled the entire sampling workflow, OTP verification, and real-time reporting automatically.

4. Performance Measurement — 4-Tier Measurement Framework

End-to-end Closed-Loop measurement from Awareness to Purchase — unique in the DOOH market.

Tier 1

D-Spots

Ambient Impressions — TVC plays on LCD

Tier 2

Interacted

Active Engagement — Ad taps on screen

Tier 3

Verified Views

Mandatory brand video during checkout (100% VCR)

Tier 4

Verified Purchases

Completed orders — Closed-Loop Sales

📊 Real-World Results (Type A DOOH Case Study — 48 days, 100+ machines)

  • 5.47M D-Spots542 Interacted8,233 Verified Views7,040 Verified Purchases
  • View → Purchase conversion: 85.5%
  • Cost per Purchase: 3,636 VND14–82× cheaper than digital ads

By combining Sampling + Type A DOOH, Brands can measure the entire journey from awareness to purchase right at the point of sale.

5. Reference Pricing (Published Gross)

Published prices include room for Agency Commission, Volume Discount, and Term Discount.

Category Description Published Price (Gross) Notes
1. Product Listing Fee
Monthly
Display & slot reservation fee for sampling products in the machine network 670,000 VND/slot/month 100 slots = 67M VND
200 slots = 134M VND
2. Dispensing & Ops Fee
Per Unit
Technical operations fee for sampling delivery (charged only on successful dispense) 4,000 – 7,000 VND/unit Varies by product size & volume
Minimum budget: 55M VND/month
3. Tech & UI Customization
One-time
UI design, Landing Page, Mini-game, custom sampling algorithm 20,000,000 – 65,000,000 VND One-time setup fee
Varies by complexity

⚠️ Important Notes

• Products are provided free by the Brand to Dropfoods for display and distribution
• Category 3 (Tech Customization) does not include Games/QR development — quoted case-by-case
• UI Skins, Mini-games, data collection Landing Pages, and conditional sampling algorithms incur Category 3 fees

6. Key Advantages vs Traditional Sampling

Criteria Traditional Sampling O2O Smart Sampling
On-site StaffRequired (PG/PB)✅ Not needed
Distribution ControlDifficult, human-dependent✅ 1 user = 1 product (OTP)
Customer DataNone or minimal✅ Phone, email, survey
ReportingPost-campaign, manual✅ Real-time dashboard
Coverage1-5 locations per wave✅ 88+ locations simultaneously
Operating HoursBusiness hours only✅ 7am–10pm, 7 days/week
Cost per Unit15,000–30,000 VND (staff + booth)✅ 4,000–7,000 VND
DOOH Integration❌ No✅ TVC + Sampling simultaneously

7. Deployment Process — 4 Steps

Step 1

Brief & Register

Brand submits brief: product, quantity, goals, timeline

Step 2

Setup & Design

Dropfoods designs UI, Landing Page, algorithm | Brand delivers products

Step 3

Go Live

Sampling runs automatically on 88+ machines, real-time tracking

Step 4

Report

Detailed reports: units dispensed, customer data, conversion, locations

🎁 Register for O2O Smart Sampling Consultation

Automated sampling, 100% controlled, first-party data collection. Contact us for a proposal.

Register Now →

Contact Dropfoods Vietnam
Address: 34 Lê Duẩn, Phường Sài Gòn, Ho Chi Minh City. (Monday - Friday: 8:30 am - 5:30 pm)
Phone: (84) 028 6290 6066
Email: contact@dropfoods.com
Facebook: https://www.facebook.com/maybanhangdropfoods
Website: https://www.dropfoods.com