Attentive × Calla Shoes
Attentive x Calla Shoes, 74x ROI from unified SMS and email
74x UK program ROI
Scaling growth while losing personal touch to scaling with personal touch intact
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Why it works
The case study earns its headline numbers by anchoring each claim to a specific campaign or time window, such as four weeks post-migration or a single bank holiday send, which makes the figures feel auditable rather than aggregate marketing stats. The Klaviyo-to-Attentive switch is named explicitly, giving the story a clear competitive before-state. The demographic angle, building trust with Gen X and Boomer women who are skeptical of digital messages, is a differentiating detail that lifts it above a generic channel-consolidation story.
Steal this
Anchor one small, isolated campaign with precise spend and revenue figures (the £46 spend generating £1,000 revenue example) to make the broader ROI claims feel credible by contrast.
Click to enlarge ↗ This is editorial commentary and curation. The case study, screenshot, and all metrics are Attentive's published work; we link to the source and lead with our analysis.