Postmortem Distribution

Who reads it.

Overview

A great postmortem that nobody reads is wasted work. Distribution gets the PM in front of the people who can act on it; matching the channel to the audience is the difference between learning and archiving.

• Audience layers. Engineering reads the technical detail; leadership reads the summary; support and sales read the customer-impact slice; customers read the external version.
• Internal channel. All-engineering Slack channel or weekly email. Cross-team learning happens here.
• Leadership review. Major PMs (Sev-1 and Sev-2) go to engineering leadership. Action items receive investment attention.
• Cross-functional plus customer comms. Support and sales need to know what to say; customers get an external version that preserves trust.

The approach

Three habits make distribution real: a standing internal channel, leadership review for major PMs, and a customer-facing version for incidents with external impact.

• Internal channel. #incident-pms Slack channel plus all-eng email digest. Engineers see what is happening across teams.
• Leadership review. Major PMs reviewed by VP Engineering or higher. Investment conversations have data, not anecdotes.
• Cross-functional summary. Support, sales, and marketing get a tailored summary. Their customer conversations stay accurate.
• Customer comms plus documented workflow. External version where appropriate; per-team distribution channels written into the runbook.

Why this compounds

Each well-distributed PM reaches the people who can act on its lessons. Compounded across the year, the engineering org learns from incidents instead of repeating them.

• Cross-team learning. PMs reach the team that operates a similar service. The next incident lands somewhere that has already seen it.
• Customer trust. External postmortems handled well preserve customer relationships during the renewal conversation.
• Cultural reinforcement. Distribution signals that PMs matter. Engineers invest in writing them well because they know the audience.
• Year-one investment, year-two habit. The first quarter sets up the channels. By year two the workflow runs itself.