SirenPartners
Projects

Programs we've built. Results that kept us retained.

We lead with depth, not volume. Every engagement starts with understanding how your customers actually move between your store and your website.

Flagship Case Study

Multi-location furniture & mattress retailer

The Client

A multi-location furniture and mattress retailer with both store and e-commerce presence. In-store and digital teams operated independently, with customer data siloed across systems. Their email platform had no visibility into store activity - their highest-value sales channel.

The Problem

  • Email platform completely blind to store sales and in-store customer behavior
  • In-store buyers receiving generic welcome sequences designed for online-only customers
  • Paid media audiences built exclusively from online buyer data, missing their best customers
  • No measurement of how digital marketing influenced store traffic and sales

The Migration

Salesforce Commerce Cloud to Klaviyo. This wasn't a standard migration - it required custom data mapping between in-store POS systems and the new email platform. Our in-house development team built the integrations from scratch, mapping purchase history, customer profiles, and behavioral data from multiple sources into unified Klaviyo profiles.

The complexity of this migration is the moat. Most email agencies would need to outsource this work or rely on the client's dev team. We did it ourselves.

What We Built

  • In-store email capture flows synced directly to Klaviyo
  • Post-purchase sequences differentiated by channel - store vs online
  • Win-back programs specifically for lapsed in-store customers
  • A promotional calendar addressing the full customer base, not just online buyers
  • The data connection layer that made all of the above possible

Results

2+

Years retained - program still running

30%+

Revenue attributed to email

100%

In-store buyers now in email retention program

<24hr

In-store purchase to Klaviyo profile sync

“They understood our business from day one. Not just email - the way our customers actually shop.”

- Director of Marketing

More Work

Additional engagements

Appliances & Kitchen

Regional appliance retailer with 8 locations

Built a post-purchase email sequence that differentiates between in-store and online buyers, resulting in a measurable increase in repeat cross-channel purchases within the first six months.

22% increase in cross-channel repeat purchases
Flooring & Home

Flooring retailer expanding from 3 to 7 stores

Connected their in-store POS data to Klaviyo during a period of rapid expansion, ensuring every new location’s customer data fed into a unified email program from day one.

7 locations unified in Klaviyo within 30 days
Jewelry & Luxury

High-end jewelry retailer with flagship store

Designed an SMS and email program for high-consideration, long-cycle purchases - post-visit follow-ups, anniversary reminders, and curated collection previews that respected the buying journey.

3.2x higher SMS conversion vs industry average

Your customers are in the store. Let's make sure your email program knows.