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
Engage
Customer participates in survey / game on the machine screen
Landing Page
Redirected to Landing Page → fills in info (phone, email...)
OTP Verify
Receives OTP code via phone → enters code on machine
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
| 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.
D-Spots
Ambient Impressions — TVC plays on LCD
Interacted
Active Engagement — Ad taps on screen
Verified Views
Mandatory brand video during checkout (100% VCR)
Verified Purchases
Completed orders — Closed-Loop Sales
📊 Real-World Results (Type A DOOH Case Study — 48 days, 100+ machines)
- 5.47M D-Spots → 542 Interacted → 8,233 Verified Views → 7,040 Verified Purchases
- View → Purchase conversion: 85.5%
- Cost per Purchase: 3,636 VND — 14–82× 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 Staff | Required (PG/PB) | ✅ Not needed |
| Distribution Control | Difficult, human-dependent | ✅ 1 user = 1 product (OTP) |
| Customer Data | None or minimal | ✅ Phone, email, survey |
| Reporting | Post-campaign, manual | ✅ Real-time dashboard |
| Coverage | 1-5 locations per wave | ✅ 88+ locations simultaneously |
| Operating Hours | Business hours only | ✅ 7am–10pm, 7 days/week |
| Cost per Unit | 15,000–30,000 VND (staff + booth) | ✅ 4,000–7,000 VND |
| DOOH Integration | ❌ No | ✅ TVC + Sampling simultaneously |
7. Deployment Process — 4 Steps
Brief & Register
Brand submits brief: product, quantity, goals, timeline
Setup & Design
Dropfoods designs UI, Landing Page, algorithm | Brand delivers products
Go Live
Sampling runs automatically on 88+ machines, real-time tracking
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