See which subscriber cohorts are losing people
Turn individual unsubscribes into a clearer view of cohort level impact.
Trigger
Unsubscribe Trigger
Triggered when a subscriber unsubscribes from Mailchimp
Action
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Why this helps
A single unsubscribe says little, while repeated losses in one cohort can signal a serious issue.
- Connect individual events to cohort history
- Highlight concentrated losses
- Support faster retention decisions
Setup
Build it in a few focused steps.
- 1Connect Mailchimp and ClickHouse in Notis.
- 2Create a new automation for cohort impact analysis.
- 3Tell Notis to compare the unsubscribe with available cohort history and summarize the impact.
- 4Choose the Mailchimp Unsubscribe Trigger and a report channel.
- 5Test using one actual unsubscribe.
Questions about this workflow
What cohort fields are needed?
Your ClickHouse data must include the fields used to define cohorts, such as signup date or source.
Will it recommend a retention action?
It can summarize evidence and recommendations when your instruction asks for them.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Mailchimp to ClickHouse. A trigger fires from one place; an action lands in another.
Mailchimp triggers
ClickHouse actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Database Schema
Get comprehensive schema overview of an entire database including all tables and optionally their column definitions. essential for ai agents to understand the complete database structure in a single call.
Campaign Trigger
Triggered when a campaign is sent or experiences an event in Mailchimp
Get Table Schema
Get detailed schema information for a specific table including column definitions, types, keys, and optionally sample data. this is essential for ai agents to understand table structure before constructing queries.
Profile Update Trigger
Triggered when a subscriber's profile is updated in Mailchimp
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
Subscribe Trigger
Triggered when a subscriber subscribes to Mailchimp
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
Unsubscribe Trigger
Triggered when a subscriber unsubscribes from Mailchimp
Connect any two apps with Notis in the middle.
Mailchimp and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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