#323 2026 · Mercado Livre (with agency Gut São Paulo) · E-commerceredesign-the-moment
Mercado Livre, having just bought the naming rights to São Paulo's reopened Pacaembu stadium, mowed its pitch into a 104-metre working barcode that fans scanned off their TV screens mid-match for an instant discount
the problem
A stadium naming-rights deal is a passive logo, not a sale
background
Mercado Livre, Latin America's largest e-commerce platform, secured the naming rights to Pacaembu, one of São Paulo's most storied stadiums, as it reopened after renovation. Naming-rights deals are normally the most passive form of sponsorship available: the brand's name sits on a facade or a broadcast graphic for the length of the contract, seen but never acted on, valued in impressions rather than transactions.
The stadium's reopening game was a recreation of the 2012 Copa Libertadores final between Corinthians and Boca Juniors, broadcast live nationally. Agency Gut São Paulo was asked to make the sponsorship do more than sit on a sign — to give a one-off broadcast moment an actual commercial job.
the move
Working with the grounds crew, Gut mowed the pitch's grass into a 104-metre functional barcode, laid out so it read correctly from every broadcast camera angle and every stadium seat. During the live match, anyone watching on TV or in the stands could point a phone camera at the field and a dedicated web app decoded the barcode into an instant discount code for Mercado Livre.
the payoff
Over 53,000 coupons were reportedly redeemed and the campaign generated more than €1.5 million in sales, with traffic recorded from over 800 cities across Brazil. The work won the Outdoor Grand Prix at Cannes Lions 2026 — though as with any awarded campaign, the sales figures come from the brand's own case study rather than independently audited data.
what came after
Field Barcode is now cited in ad-industry writeups as the model for converting a traditionally passive sponsorship asset — signage, naming rights, a broadcast bug — into an active, trackable performance channel embedded in the moment people are already watching.
references
- [1]Mercado Libre Turned a Soccer Field Into a Giant Scannable BarcodeWERSM, 2026wersm.com
- [2]Mercado Livre - Field Barcode: The First Scannable Football FieldLLLLITL, 2026llllitl.fr