---
title: "Communication templates for incidents"
source: PostHog Documentation
source_url: https://github.com/PostHog/posthog.com
licence: MIT
domain: data-and-analysis
subdomain: posthog-docs
date_added: 2026-04-25
---

When things go wrong, our priority is simple: **keep customers informed, quickly and clearly.**

This section covers how we communicate during service disruptions, from small hiccups to major outages. We aim to be **transparent, human, and proactive** — sharing what we know (and what we don't) in plain English.

> For the engineering incident response process, see [Handling an incident](/handbook/engineering/operations/incidents).

PostHog customers rely on us to power their products, so we provide honest, timely updates through the right channels — usually Slack or email, and occasionally SMS for high‑touch accounts.

## **Core principles**

### **1\. Transparency \> Perfection**

Share what we know, when we know it, clearly and without “status-speak.”

### **2\. Human-centric**

Messages come from people, not “The PostHog Team.” Show empathy and ownership (“I know this might interrupt your work; here’s what we’re doing.”)

### **3\. Consistency**

Use a consistent structure and timing so customers know what to expect.

### **4\. Proactive by default**

Reach out before customers ask, even if it’s just to say, “We’re aware and investigating.”

## **Severity levels**

| Level | Description | Examples | Channels | Cadence |
| ----- | ----- | ----- | ----- | ----- |
| **SEV 0 – Emergency** | Existential service failure; all or most customers impacted with no workaround. CMOC sends immediately via broadcast. Account owners do **not** gate comms. | Full platform outage, data loss, security breach with active customer impact. | Pylon broadcast → Email → DM/SMS | Immediate broadcast, then every 15–30 min; postmortem within 24h |
| **SEV 1 – Critical** | Major outage or data loss; widespread impact. | API unavailable, ingestion halted, login failures. | Slack → Email → (DM or SMS if needed) | Every 30–60 min; postmortem within 48h |
| **SEV 2 – Major** | Partial degradation or downtime; workaround available. | Replay or query delays \>30 min, flag evaluation slow. | Slack or Email | Every 1–2 hrs |
| **SEV 3 – Minor** | Limited impact or slow recovery. | Billing sync delays, isolated org issues. | Slack | Start and close |
| **SEV 4 – Informational / Planned** | Maintenance or recovered incidents. | DB upgrade, scaling events. | Email or Slack broadcast | Before \+ after window |

## **Templates**

### **Emergency (SEV 0)**

> **This overrides the standard workflow.** CMOC sends directly to all affected customer channels via Pylon broadcast without waiting for account owners. Account owners follow up individually once online.

**Initial broadcast (Pylon):**

We're investigating a major incident affecting [feature/service]. [Symptom — e.g., "Event ingestion is fully stopped" or "The PostHog app is unreachable."]

Our engineering team is actively working on a fix. We'll post updates here every 15–30 minutes until this is resolved.

**Update template:**

Update on [feature/service]: [Status — e.g., "Root cause identified. Fix is being deployed." or "Still investigating. No ETA yet, but narrowing it down."]

Next update in ~[15/30] minutes.

**Resolution template:**

[Feature/service] is back online as of [time UTC]. 

Root cause: [one-line summary].
Duration: [start–end].
Impact: [brief description of what customers experienced].

We're monitoring closely. A full postmortem will follow within 24 hours.

If you experienced data gaps or have concerns about impact to your project, reply here and your account owner will follow up directly.

### **Critical**

**Subject:** PostHog Outage – We’re investigating

Hey \[Name/Team\],

We’re investigating a major outage affecting \[feature\]. You may see \[symptom\]. Engineers are on it — updates every 30 minutes until resolved.

We know this may disrupt your work — thanks for your patience while we get things back online.

— \[Your Name\], PostHog

**Follow-Up (Resolution):** Good news — the issue is resolved. Root cause: \[summary\].
Duration: \[start–end\].
Impact: \[brief effect\].

We’re monitoring and will share a full write-up within 48 hours.

### **Major**

**Subject:** Performance issues in \[Feature\]

Hey \[Name\],

We’re seeing performance issues in \[component\]. You might notice \[impact\]. We’re mitigating and will update within the hour.

Thanks for your patience\!
— \[Your Name\], PostHog

### **Minor**

**Subject:** Slower performance in \\\[area\\\]

FYI — This shouldn’t block you, but we’re monitoring closely. I’ll update once it’s stable.

### **Planned maintenance**

**Subject:** Maintenance – \[Service/Region\]

Heads up — maintenance on \[system\] from \[time window\]. No downtime expected, but queries or replays may be briefly delayed. We’ll confirm once complete.

## **Tone and voice**

| Principle | Example | Avoid |
| :---- | :---- | :---- |
| **Direct** | “Event ingestion is paused.” | “We are experiencing an issue affecting a subset of users.” |
| **Empathetic** | “I know this blocks work; it’s our top priority.” | “We apologize for the inconvenience.” |
| **Plain English** | “Dashboards might not update.” | “You may experience degraded query latency.” |
| **Ownership** | “We identified a config issue on our side.” | “A third-party dependency caused an issue.” |

## **Coordination within GTM**

**Engineering manages detection and resolution** (see [engineering incident handbook](/handbook/engineering/operations/incidents)). GTM ensures clear, consistent customer updates, without duplication or coverage gaps.

### **Goals**

* Keep a single source of truth for comms, managed by the CMOC.
* Maintain global coverage so customers always hear from us.
* Enable fast, clear handoffs between teams.

### **Roles & responsibilities**

| Role | Responsibility |
| :---- | :---- |
| **Communications Manager On-Call (CMOC)** | Activated for any incident requiring GTM notification. Drafts all comms using handbook templates. Coordinates with engineering for context and keeps a central log of who’s been notified. Manages regional handoffs if incidents span time zones or owners are offline. |
| **AM/AE/CSM** | Sends comms to their accounts using CMOC drafts. If offline (PTO, off-hours, or time zone), CMOC assigns a regional backup. |
| **Regional Backup (Americas / EMEA / APAC)** | Covers accounts when owners are offline. Takes handoff from CMOC, sends comms, and ensures follow-up continuity. |
| **Engineering Incident Lead** | Owns technical response and provides updates to CMOC for accurate messaging. |

> All coordination between CMOC and Account Owners should happen in [#group-cs-sales-support](https://posthog.slack.com/archives/C090RCG671C) transparently so that everyone who manages customers is in the loop.

### **Workflow**

> **SEV 0 override:** For SEV 0 incidents, the CMOC skips steps 4–5 and sends the initial message directly via [Pylon broadcast](#using-pylon-for-broadcasts) to all affected customer channels. Account owners are notified in [#group-cs-sales-support](https://posthog.slack.com/archives/C090RCG671C) simultaneously, and take over individual follow-up threads once online. The CMOC continues to own broadcast updates until the incident is resolved or downgraded.
1. **Incident declared** (Engineering).
2. **CMOC activated**, notified of impact.
3. **Assess customer impact**, this <PrivateLink url="https://us.posthog.com/project/2/insights/EBiXOD91">insight</PrivateLink> (or this <PrivateLink url="https://docs.google.com/spreadsheets/d/1EyV55L0vWTfD4W02j5A3Vx3YZYPUODmQQC1toFPcKXU/edit?gid=1396499197#gid=1396499197">Google Sheet</PrivateLink> as a backup) will help you understand which customers are using which components in which cloud environment.
4. **CMOC drafts the initial message**, shares with the Account Owners in [#group-cs-sales-support](https://posthog.slack.com/archives/C090RCG671C)
5. **AM/AE/CSM sends to accounts**; backup sends if primary is offline.
6. **Updates** drafted by CMOC (30–60 min for SEV1, 1–2 hrs for SEV2).
7. **Regional handoffs** coordinated by CMOC.
8. **Resolution**: CMOC drafts closure; AM/AE/CSM (or backup) sends.
9. **Post-incident**: CMOC archives thread; GTM logs feedback and follow-ups.
10. **Postmortem**: Engineering writes technical summary; GTM adds comms learnings.

## **Example Slack workflow (Critical)**

1. **Incident created**: \#inc-2025-11-05-posthog-feature-flags-error.
2. **SRE posts summary; CMOC coordinates comms.**
3. **CMOC drafts message** and shares with the **Account Owner** (the person responsible for the affected accounts).
4. **Account Owner sends the message** to their customers. Example outbound: “We’re investigating an outage affecting event ingestion. Updates every 30 minutes.”
5. **During:** “Root cause identified (Redis queue saturation). Fix in progress.”
6. **Resolution:** “Resolved at 11:42 UTC. Write-up soon.”

## Using Pylon for broadcasts

It's best that communications are shared directly from the account owner; however, if speed is of the essence, i.e. for a SEV 1 or security issue, and some folks are not yet working or on PTO, the CMOC can use Pylon to send a broadcast to all customer Slack channels en masse:

1. Log into app.usepylon.com with your PostHog Slack account.
2. Go to the _Broadcasts_ link on the left-hand side of the navigation.
3. Click _Create Broadcast_ in the top right-hand corner of the UI.
4. Enter the message you want to send, ensuring the formatting looks correct in the preview on the right-hand side.
5. Ensure the Send as option is set to PostHog, not your own user (unless you want to handle 450+ potential separate threads)
6. Click _Next_ in the top right-hand corner of the UI.
7. Select your audience. You can use the filters to select all channels not owned by specific people, e.g., those who are currently online and communicating 1:1 with customers.
8. Make sure you click _Add to Audience_ to add the selected channels to the broadcast.
9. Click _Next_ in the top right-hand corner of the UI.
10. Set the engagement notification channel to be [#support-customer-success](https://posthog.slack.com/archives/C05MUMZLC13)
11. Check that you're happy with the message and audience and click _Send Now_ in the top right of the UI.
12. Ask everyone online to monitor [#support-customer-success](https://posthog.slack.com/archives/C05MUMZLC13) for replies and respond where necessary.
