---
title: How to connect Customer.io to mailfloss
slug: how-to-connect-customerio-to-mailfloss
docTags: 
createdAt: 2023-06-13T19:26:35.000Z
---

 

::embed[]{url="https://www.youtube.com/watch?v=3FK9adYmtH8"}

Getting started cleaning your email lists with Customer.io is easy with mailfloss. Once Customer.io is connected, you can let mailfloss automatically clean your email lists with Customer.io going forward. Here’s how to do that.

## Step 1. Visit the integrations page

Visit the integrations page by clicking on “Integrations” in the left sidebar.

::Image[]{src="https://api.archbee.com/api/optimize/yGUejq6E8IJ_sYX6JSjSr/R_HJN5RPPAllXuvWOAzuT_step-1-click-integrations-1.png" size="34" width="504" height="846" position="center" darkWidth="504" darkHeight="846" showCaption="false"}

## Step 2. Click the "Add integration" button

::Image[]{src="https://api.archbee.com/api/optimize/yGUejq6E8IJ_sYX6JSjSr/bi8n9Bf7xzTvZKtRn8D6m_step-2-click-add-integration-1.png" size="40" width="886" height="248" position="center" darkWidth="886" darkHeight="248" showCaption="false"}

## Step 3. Search for Customer.io and click its logo

You will need to login to Customer.io for the next step.

![](https://api.archbee.com/api/optimize/yGUejq6E8IJ_sYX6JSjSr/OTOXsOdPGJ00VIhEH5cu8_step-3-search-for-customerio.png)

## Step 4. In Customer.io, click the Settings, then Account Settings.

::Image[]{src="https://api.archbee.com/api/optimize/q0k5I8m97LQRRapz7DXqQ-bUyYwfqMrsVDT5N2VxtXf-20250227-193052.png" size="46" width="231" height="228" position="center" darkWidth="231" darkHeight="228" showCaption="false"}



## Step 5. Click API Credentials.

![](https://api.archbee.com/api/optimize/q0k5I8m97LQRRapz7DXqQ-TOXJ3oBSUZkwyqjUptzVe-20250227-193114.png)



## Step 6. Copy the Site ID and Tracking API Key.

![](https://api.archbee.com/api/optimize/q0k5I8m97LQRRapz7DXqQ-fKkRsEkD1wdd2bvc408Mf-20250227-193507.png)



## Step 7. Copy an existing App API Key or create a new one.

![](https://api.archbee.com/api/optimize/q0k5I8m97LQRRapz7DXqQ-rLDF2_WZvxcJr64dTrrJm-20250227-193545.png)



## Step 8. Back in mailfloss, paste the Site ID, Tracking API Key, App API Key, and click the Connect button.



::Image[]{src="https://api.archbee.com/api/optimize/yGUejq6E8IJ_sYX6JSjSr/mQJGfusVdlx2CMpr6JYki_step-8-paste-customerio-keys-and-connect.png" size="72" width="1254" height="503" position="center" darkWidth="1254" darkHeight="503" showCaption="false"}

For an overview of what mailfloss does for Customer.io, see the [Customer.io integration page](https://mailfloss.com/integrations/customerio/).