Customer story · Grossmont Center

Grossmont Center builds an owned shopper email list with guest WiFi

Grossmont Center wanted to reach more of its visitors directly with promotions and community events. Adentro combined guest WiFi sign-up, shopper profiles, and email marketing to grow its list from 400 to more than 30,000 contacts.

GUEST CONNECTIONA person,not just a visit.VISIT CONTEXTWhen. Where. How often.A MORE USEFUL CUSTOMER PICTURECustomer contextConnection + observed visit historyRelationshipFirst-time or returning guestLocationThe places they visitRelevanceA better starting point for the next messageCONNECT THE SIGNALS. KEEP THEIR MEANING.
Conceptual illustration—not customer creative or product UI.
30,000+

Email contacts
up from 400

56%

Repeat visitors
of WiFi users

500

New contacts
collected each month

The challenge

Grossmont Center, an outdoor shopping center in La Mesa, CA, draws thousands of visitors a day, but few of them were on its mailing list.

Shoppers had to find employees at specific spots to sign up. It took months to collect 400 emails.

An email address alone could not support relevant campaigns or offers.

The solution

1. Guest WiFi: Turn the whole property into a sign-up point

Adentro (then Zenreach) Guest WiFi asked shoppers for an email in exchange for free access anywhere on the 939,000-square-foot property. No one entered data by hand.

2. Customer Data: Attach visit history to every address

Customer Data tracked visits automatically and built a profile for each shopper, so the team could see who came back and how often.

3. Email Marketing: Promote events, openings and sales

The marketing team sent targeted messages on new restaurants, holiday sales and nonprofit events, including one supporting the San Diego Animal Support Foundation.

4. Foot Traffic Analytics: Learn what works for this community

Direct visit measurement showed the team which messages were and were not working.

“Adentro enabled us to collect thousands of emails. Now we can reach out to our customers directly and share all the exciting events, restaurants, shopping and experiences that Grossmont Center has to offer.”

Lori MooreVP of Marketing

The results

  • 30,000+ email contacts, up from 400
  • 56% repeat visitors, of WiFi users
  • 500 new contacts, collected each month
  • Higher attendance at special events and better awareness of promotions, per the marketing team, without campaign-level attribution

More customer perspectives

Customer story

John Hardy

John Hardy connects digital OOH markets to measured store visits

Read story
Customer story

Puma

Puma connects back-to-school advertising to shopping center visits

Read story

Put what you’ve learned to work.

See how Adentro connects customer audiences, campaigns, and in-person measurement.

Explore the platform