Author

David O'Keeffe

Co-founder, SeeGap. Writes about receipt-verified cashback, retail attribution and first-party data for FMCG brands.

About the author

David O'Keeffe

Co-founder, SeeGap

David has spent his career where consumer brands meet the shopper. Before SeeGap he spent two and a half years working with some of Ireland's biggest consumer brands, putting QR codes on packaging and running the activations behind them. That work showed him the gap that still exists today: brands can see the marketing that reaches a shopper, and they can see the sales a retailer rings up, but little ties the two together. He co-founded SeeGap to close it, using the shopper's own receipt as the proof of a real purchase.

David O'Keeffe, Co-founder, SeeGap

Articles by David O'Keeffe

Use Cases

Impactful Cashback Use Cases

Most brands think of cashback as a launch tool. Here are five distinct commercial uses and what each one produces.

David O'Keeffe · 20 July 2026 · 8 min read
Growth

Why household penetration beats loyalty for FMCG brands

Loyalty schemes reward the people already buying. Penetration is where category growth actually comes from, in plain terms.

David O'Keeffe · 1 July 2026 · 7 min read
Attribution

The retail attribution gap, and how to close it

Most brands see platform metrics but not which campaign produced a sale at the shelf. Why that happens, and what closes the gap.

David O'Keeffe · 17 June 2026 · 7 min read
Insight

What DTC brands lose (and need) when they move into retail

Moving into grocery means giving up the customer data DTC brands take for granted. What disappears, and how to get it back.

David O'Keeffe · 3 June 2026 · 7 min read
Sampling

How to Upgrade Sampling at Events

Event sampling builds awareness but rarely produces verified sales data, consumer identity, or attribution.

David O'Keeffe · 20 May 2026 · 6 min read
Attribution

You Can Track Impressions. Can You Track the Sales?

Paid social tells you what your ad cost. It cannot tell you if anyone bought the product.

David O'Keeffe · 6 May 2026 · 7 min read
Retail Trial

How to Drive In-Store Purchases and Know Which Campaign Sent Them

Most in-store marketing produces platform metrics, not verified purchase records. Here is how to fix that.

David O'Keeffe · 22 April 2026 · 7 min read
First-Party Data

What's Actually in a Receipt

Retailers have always had this data. Brands selling through retail typically have not. Here is what a verified receipt contains.

David O'Keeffe · 8 April 2026 · 7 min read
Consumer Insight

Capturing Verified Insights from Retail Customers

Most market research in FMCG uses respondents who are not confirmed buyers. Here is what changes when the survey starts with a receipt.

David O'Keeffe · 25 March 2026 · 7 min read
Trade Spend

Trade Spend Tells You What Sold. It Never Tells You Who Bought.

Brands allocate 15 to 25% of revenue to trade and almost never learn who those promotions brought into store.

David O'Keeffe · 11 March 2026 · 7 min read

Ready to win new customers?

Bring a product and a channel you already run. We will show you how the verified sales come back.