Klaviyo
AI / ML EngineerComplexAug 6, 2026

Balance disengagement suppression across merchant cohorts

Reducing unwanted messages can also remove the chance for a customer to re-engage.

Teams must weigh immediate recipient protection against the hidden cost of suppressing the wrong people.

I want fewer complaints, but I can’t quietly cut off customers who were about to come back.

Parviz Hosseini · Retention Manager

She runs high-frequency lifecycle programs for a subscription brand and is accountable for both revenue and subscriber fatigue.

What pulls against what

  • recipient protection vs. recoverable revenue
  • individual relevance vs. auditable rules
  • peak-season urgency vs. verification rigor
  • aggregate gains vs. cohort-level harm

What is at stake

The model must reduce harmful messaging without invisibly suppressing customers who would have engaged

Why Klaviyo

At Klaviyo, lifecycle messaging decisions can influence both customer trust and merchants’ reachable revenue.

Written for

Responsible ML engineerExperimentation and causal evaluation specialistProduction ML safety practitioner

This is the setup. The work is inside.

Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.