From reader to subscriber, personally.

Marketing

The classic surface, but chosen per customer rather than per segment, and always against a holdout.

• Which offer this specific customer is worth making
• Channel and timing chosen per person, not per campaign
• Contact pressure and fatigue arbitrated across every programme
• Win-back economics: who is worth a discount and who is not

Product

Where the customer actually experiences the value, and where most silent revenue loss happens.

• Onboarding steps that lose customers before first value
• A feature with high retention correlation that half the base never discovers
• Paywall and upgrade prompt placement
• In-product surfaces used as a treatment arm, not just email and push

Commercial

Pricing, packaging and the shape of the offer itself, tested rather than argued about.

• Plan and bundle structure by cohort
• Discount depth against margin, not against conversion alone
• Annual versus monthly framing per customer
• Dunning and involuntary churn recovery sequences

Technical health

Anomalies nobody asked it to look for. This is the category no decisioning engine covers.

• A checkout error rate that rose on one device and one region
• Payment failures concentrated in a single issuer or method
• A broken deeplink quietly killing a high-value journey
• Latency or delivery degradation eating conversion before any message does