> ## Documentation Index
> Fetch the complete documentation index at: https://docs.adriel.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to connect

> How to connect the Mailchimp data source to Adriel: authorize a Mailchimp account, select the account, and verify data.

Mailchimp is an email-marketing and automation platform built around audiences, campaigns, and members. Connecting it brings per-campaign send and engagement data, audience growth, and e-commerce attribution into Adriel dashboards alongside ad-platform spend and other CRM sources.

## Before you connect

The following are required:

* A Mailchimp account with permission to authorize third-party apps.
* A Mailchimp-connected e-commerce store, if orders and revenue metrics should flow into dashboards — accounts without an attached store report zero for those fields.

## Connect Mailchimp

<Steps>
  <Step title="Authorize the Mailchimp account">
    On the **Data Sources** page, search for **Mailchimp** and select it. Sign in to Mailchimp in the pop-up window, then allow access on the consent screen to authorize the requested read permissions.
  </Step>

  <Step title="Select the account">
    On the data source settings, choose the Mailchimp **account** to connect.
  </Step>

  <Step title="Submit">
    Click **Submit** to complete the connection. The initial sync runs in the background — data typically appears within one business day.
  </Step>
</Steps>

## What gets imported

The connector imports per-campaign send volume (emails sent, successful deliveries), engagement (unique opens, open rate, unique clicks, click rate, hard bounces, soft bounces, unsubscribes, abuse reports), e-commerce conversion (orders, revenue, average order revenue), and audience growth. Breakdowns include account, audience, campaign, campaign type, segment, and subscriber source.

For the complete list of metrics and breakdowns, see the [Mailchimp data reference](/data-sources/g-n/mailchimp/data-reference).

## Troubleshooting

<AccordionGroup>
  <Accordion title="Open and click counts keep changing for older campaigns">
    Recipients sometimes open or click days or weeks after a campaign is sent. Reports are read live, so late events update the original send-date counts rather than appearing on the day they happened.
  </Accordion>

  <Accordion title="Revenue and order metrics are zero">
    Mailchimp e-commerce metrics depend on a Mailchimp-connected store. Accounts without an attached e-commerce integration report zero for orders, revenue, and average order revenue. Connect a store in Mailchimp to populate these fields.
  </Accordion>

  <Accordion title="The connection stops working after revoking app access">
    Mailchimp issues permanent OAuth tokens with no refresh cycle. Revoking the connected app inside Mailchimp invalidates the access token. Reconnect the data source to issue a new token.
  </Accordion>
</AccordionGroup>

## Related

<CardGroup cols={2}>
  <Card title="Mailchimp data reference" href="/data-sources/g-n/mailchimp/data-reference">
    Metrics, breakdowns, and limits for Mailchimp.
  </Card>

  <Card title="Mailchimp FAQs" href="/data-sources/g-n/mailchimp/faqs">
    Common questions and expected behaviors for the Mailchimp data source.
  </Card>

  <Card title="How to connect HubSpot" href="/data-sources/g-n/hubspot/how-to-connect">
    Connect an alternative marketing and CRM platform with deeper sales-pipeline data.
  </Card>

  <Card title="How to connect Klaviyo" href="/data-sources/g-n/klaviyo/how-to-connect">
    Connect another email and SMS marketing platform.
  </Card>
</CardGroup>