As third-party cookies fade and privacy rules tighten, first-party data — the information customers share with you directly — has become the most valuable and durable asset in ecommerce. For marketplace brands, building it is both harder and more important. Here's a strategy.
Why first-party data wins
First-party data is:
- Durable — it doesn't disappear when a platform changes its rules.
- Accurate — it comes straight from the customer, with consent.
- Actionable — you can market to it directly across email, SMS, and ads.
For brands that sell where the platform owns the customer, first-party data is the only way to build an audience you control.
The marketplace challenge
On Amazon, Walmart, and TikTok Shop, you don't get first-party data by default — the platform keeps it. So you have to earn it after the sale, with the customer's consent.
Building your first-party data engine
- Capture at the product — a covered QR sticker with a reward invites the customer to share their details.
- Get explicit opt-in — a branded form where the customer agrees to marketing.
- Enrich with purchase history — match marketplace order data to build full profiles.
- Activate it — email, SMS, loyalty, and lookalike audiences for ads.
Stay compliant and consent-first
Collect data with clear opt-in and respect customer preferences. Done right, first-party data is both more effective and more trustworthy than the third-party data it replaces.
How Swapt helps
Swapt builds your first-party data engine on marketplaces — capturing consented customer data at the product and enriching it with purchase history — so you own a durable audience you can activate anywhere.
Own the relationship with every customer.
Swapt captures your marketplace customers and turns one-time orders into lifetime value — compliantly.