By Marty Cagan · svpg.com · LinkedIn
Cagan argues that the old model of carefully controlled, consistent product messaging no longer works, because most people first hear about a product from others outside the company's control. Messaging must now engage as well as inform, using concrete, shareable material such as facts, stories, ratings and enthusiastic endorsements rather than bare claims. He points to three common failures: leading with what the team finds exciting, ignoring the customer lifecycle, and failing to adapt to the audience and adoption curve. He then offers practical basics, including clarity over comprehensiveness, authenticity over authority, evidence over claims, and testing everything. The piece matters because it reframes messaging as an experimental, audience-specific function tied directly to conversion.
01Key takeaways
- Assume prospects hear about your product from others first, so write messages that are short and easy for others to repeat.
- Tailor messaging to the customer lifecycle stage (acquisition, activation, retention, referral, revenue) rather than only acquisition.
- Vary messaging by audience and adoption-curve position, keeping consistency for brand and positioning only.
- Favor clarity: include only what someone needs to take the next conversion step.
- Show evidence such as demos, endorsements and proof of solving a pain point instead of making unsupported claims.
- Test messaging variants continuously with analytics and split tests instead of relying on formulas or assumptions.
02Key sections
- Messaging in an uncontrolled world
- Cagan contrasts the era of expensive, long-lived positioning with today's reality, where prospects hear about products through others. Messaging must therefore be concrete and easy for others to repeat.
- Three common messaging mistakes
- Teams often center on their own excitement, focus only on acquisition, and ignore that early adopters and mainstream users need different messages. Customer satisfaction and proof matter more than features or cost.
- Clarity, authenticity and evidence
- Short, focused messages beat comprehensive ones, and conversational tone engages better than polished bullet lists. Showing proof such as demos, endorsements and pain-point relevance builds trust more than claims do.
- Test everything
- Cagan illustrates with a split test where a simpler message without social proof outperformed the version with it, showing that assumptions about messaging should be validated through experimentation.
03From the post
“A partnership dedicated to teaching best practices to product teams and product leaders”
04Frameworks mentioned
Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.