# MailChimp + ClickHouse

> Sync Mailchimp campaigns, lists, automations, and email metrics directly to ClickHouse. Start your 14-day free trial.

Source: https://www.erathos.com/en/pipelines/mailchimp-clickhouse
Em português: https://www.erathos.com/pipelines/mailchimp-clickhouse

MailChimp is an email marketing platform that offers an effective approach to automating and streamlining email campaigns, including newsletter creation, audience segmentation, A/B testing, and performance reporting. ClickHouse, on the other hand, is a serverless Big Data solution developed by Google that provides robust large-scale data storage and analytical capabilities.

With Erathos, you can integrate MailChimp data into ClickHouse in just a few minutes. Our platform handles the entire data movement process to your analytical environment, allowing you to blend your data with other sources in your Data Warehouse. This way, your time is focused on what actually drives value — extracting valuable insights and making more data-driven decisions.

### What MailChimp data does Erathos sync with ClickHouse?

The integration automatically syncs key MailChimp objects:

- **Contact lists** — segments, tags, and inclusion criteria
- **Campaigns** — status, delivery metrics, and performance per campaign
- **Automations** — workflows, steps, and results for each automation
- **Engagement events** — opens, clicks, conversions, and unsubscribes
- **Email metrics** — open rate, CTR, bounce rate, and deliverability
- **Custom fields** — custom properties and tags

### Why sync MailChimp with ClickHouse?

In ClickHouse, you can run OLAP queries on your MailChimp data in milliseconds, making it ideal for high-concurrency dashboards and high-volume time-series data.

### How it works

Erathos connects to MailChimp via its official API and syncs your data incrementally — only new or updated records are processed in each run, keeping pipelines fast and ClickHouse costs predictable. You choose the sync frequency (from every 5 minutes to daily), the objects to sync, and the target dataset. Every run is logged with full observability: execution time, rows processed, errors with context, and instant alerts via Slack or email if anything goes wrong.

## Data in your data warehouse in minutes

### Ready-to-use MailChimp connector

Connect MailChimp to ClickHouse in minutes. Automatically sync lists, campaigns, automations, and events — with full engagement tracking and zero manual scripting.

### Full control over your MailChimp pipelines

Configure frequency and sync mode on a per-table basis. Data lands in ClickHouse optimized for OLAP queries, delivering millisecond-level analytics even across millions of rows.

### End-to-end observability

Stop finding out about Mailchimp failures only after the business team complains. Every run is logged with runtime, processed rows, and error context. Get automatic alerts in Slack, Discord, or email the moment anything drifts from expected behavior—so your marketing data stays fresh for the next campaign analysis.

## Centralizing MailChimp data in ClickHouse has never been easier

Erathos is a data ingestion platform built for teams that need to reliably centralize their marketing data. With our MailChimp connector, you can automatically move lists, campaigns, automations, and engagement events directly to Clickhouse — complete with full logs, smart alerts, and zero maintenance.

## FAQ

### What is Erathos and how can it help my company?

Erathos is a data ingestion platform built for reliability, transparency, and control. We help data teams connect tools like MailChimp to their data warehouse — with full observability over every run, zero maintenance, and without the opacity of traditional tools on the market.

### What MailChimp data does Erathos sync to Clickhouse?

Erathos synchronizes contact lists, campaigns, automations, engagement events (opens, clicks, conversions), and email metrics from MailChimp to ClickHouse. Segmentation data, tags, and custom fields are also exported.

### How often does Erathos sync data from Mailchimp to Clickhouse?

You can configure the sync frequency at the table level, ranging from every 5 minutes to daily. Erathos uses incremental sync—processing only new or updated records on each run, which keeps your MailChimp pipeline efficient and ClickHouse costs predictable.

### What happens if a MailChimp sync fails?

Erathos automatically detects failures and sends alerts to your email, Slack, or Discord with full context — not just "job failed." Smart retries handle transient errors, and every run is logged with runtime, rows processed, and error context so your team can debug in minutes, not hours.

### Is there a free trial for the MailChimp connector?

Yes. Every Erathos connector includes a 14-day free trial. Connect MailChimp to ClickHouse and start syncing immediately — no credit card required.