--- title: "The 1-Million-Subscriber Migration to beehiiv" canonical: https://www.beehiiv.com/case-studies/resume-worded description: "How Rohan Mahtani Transitioned a Career SaaS Newsletter at Scale and Achieved 50%+ Open Rates" source: live-converter generated: 2026-05-17T20:12:10.441Z --- # The 1-Million-Subscriber Migration to beehiiv # The 1-Million-Subscriber Migration to beehiiv ## How Rohan Mahtani Transitioned a Career SaaS Newsletter at Scale and Achieved 50%+ Open Rates ![The 1-Million-Subscriber Migration to beehiiv](https://images.prismic.io/beehiiv/aDA8KidWJ-7kSe2m_Untitleddesign-17-.png?auto=format,compress) Written by Kanishka Kumawat Published on 07 Apr 2025 [](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.beehiiv.com%2Fcase-studies%2Fresume-worded&title=The%201-Million-Subscriber%20Migration%20to%20beehiiv&summary=How%20Rohan%20Mahtani%20Transitioned%20a%20Career%20SaaS%20Newsletter%20at%20Scale%20and%20Achieved%2050%25%2B%20Open%20Rates)[](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.beehiiv.com%2Fcase-studies%2Fresume-worded&text=The%201-Million-Subscriber%20Migration%20to%20beehiiv)[](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.beehiiv.com%2Fcase-studies%2Fresume-worded)[](https://www.threads.net/intent/post?text=The%201-Million-Subscriber%20Migration%20to%20beehiiv%20https%3A%2F%2Fwww.beehiiv.com%2Fcase-studies%2Fresume-worded) ### Table of contents ### **Situation:** Rohan Mahtani, founder of Resume Worded—a career development SaaS platform—launched _The Career Supplement_, a weekly email newsletter delivering career advice, personal development tips, and productivity tools. The newsletter began as a way to deepen relationships with users beyond the job-search phase and eventually grew to over 1 million subscribers. ### **Challenge:** As the list scaled, Rohan’s self-hosted solution (Sendy) couldn’t keep up. Major issues included: - Delayed sends (sometimes 24 hours for a single campaign) - Analytics inaccuracies and delayed tracking links - Difficulty debugging tech issues due to limited internal expertise - Concerns over deliverability and subscriber experience at scale He needed a robust, growth-focused platform that could handle high volume, offer accurate metrics, and support monetization via sponsorships. ### **Solution:** Rohan migrated to **beehiiv**, drawn by: - **Enterprise-grade infrastructure** with unlimited sends and high deliverability - **Advanced analytics** and open/click tracking confidence - **A/B testing**, 3D segmentation, and welcome automation features - **Smooth migration support**: warm-up schedules, filtering out inactive users, and third-party validation of emails - **Flexible pricing** not tied to monthly send volumes - A responsive dev team continuously rolling out high-impact features ### **Results:** - Successfully migrated 700,000+ subscribers (on track to complete full migration) - Achieved **50–60% open rates** and strong CTR on active segments - Improved reliability, sending speed, and deliverability - Enabled new revenue streams through newsletter sponsorships ## Related Case Studies ![How AdQuick Scaled Industry Sponsorships with beehiiv's Ad Network](https://images.prismic.io/beehiiv/Z_VpXHdAxsiBwdKG_adquick.png?auto=format,compress) ### How AdQuick Scaled Industry Sponsorships with beehiiv's Ad Network Solving scale and visibility challenges in B2B marketing [ Read Case Study → ](/case-studies/adquick) ![How Particle for Men Generated a 1.73 ROAS Through Newsletter Ads](https://images.prismic.io/beehiiv/abfLOrbci2UF6CEY_Untitleddesign-34-.png?auto=format,compress) ### How Particle for Men Generated a 1.73 ROAS Through Newsletter Ads Scaling newsletter advertising to 8.3M readers while achieving 809 conversions with beehiiv [ Read Case Study → ](/case-studies/particle-for-men) ![The Founder Who Turned His 400k+ Newsletter Into a Negative CAC Machine](https://images.prismic.io/beehiiv/afL59cBOoF08xfCT_Untitleddesign-36-.png?auto=format,compress) ### The Founder Who Turned His 400k+ Newsletter Into a Negative CAC Machine How Open Source CEO pioneered model where newsletter ad revenue offsets customer acquisition costs with beehiiv. [ Read Case Study → ](/case-studies/open-source-ceo) ![](https://media.beehiiv.com/cdn-cgi/image/fit=scale-down,onerror=redirect,format=auto,width=640,quality=75/www/boosts-promo-2x/rockets.svg) ## The Only Writing & Publishing Tool You Need [ Start Your Free Trial ](https://app.beehiiv.com/signup?plan=max)