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

# Retainful

> Email marketing and abandoned cart recovery powered by Yuko loyalty data.

<Note>
  **Where to find this:** Shopify admin → Apps → Yuko Loyalty → Integrations → Retainful
</Note>

## Introduction

The Retainful connector flows Yuko's customer and loyalty data into Retainful so you can use it in abandoned-cart and lifecycle email campaigns.

## When to use

* You're already on Retainful for email.
* You want loyalty data segmenting your Retainful sends.

## Prerequisites

<Check>You have a Retainful account and API key.</Check>

## Setup

<Steps>
  <Step title="Open Retainful integration">
    Go to **Apps → Yuko Loyalty → Integrations → Retainful**.
  </Step>

  <Step title="Connect with API key">
    Paste your Retainful API key.
  </Step>

  <Step title="Save">
    Customer attributes flow into Retainful from there.
  </Step>
</Steps>

## Best practices

<Tip>**Use Retainful for cart-abandonment**, Yuko Workflows for loyalty-specific automations.</Tip>

## Related

<CardGroup cols={2}>
  <Card title="REST API" icon="code" href="/integrations/rest-api">
    Read and write Yuko data programmatically.
  </Card>

  <Card title="Webhooks" icon="bolt" href="/integrations/webhooks">
    Receive real-time event notifications.
  </Card>

  <Card title="Shopify Flow" icon="shop" href="/integrations/shopify-flow">
    Trigger Shopify Flow workflows from Yuko events.
  </Card>

  <Card title="Klaviyo" icon="envelope" href="/integrations/klaviyo">
    Sync customers, points and tier data into Klaviyo.
  </Card>

  <Card title="Omnisend" icon="envelope" href="/integrations/omnisend">
    Sync loyalty data into Omnisend.
  </Card>

  <Card title="WhatsApp" icon="comments" href="/integrations/whatsapp">
    Send transactional loyalty messages via 7 supported WhatsApp Business API providers.
  </Card>

  <Card title="Retainful" icon="envelope-open-text" href="/integrations/retainful">
    Email marketing & abandoned cart recovery.
  </Card>

  <Card title="Facebook & Instagram" icon="facebook" href="/integrations/facebook-instagram">
    Social verification for like / follow campaigns.
  </Card>

  <Card title="Google Business" icon="google" href="/integrations/google-business">
    Google Business profile and reviews.
  </Card>

  <Card title="Custom Apps" icon="puzzle-piece" href="/integrations/custom-apps">
    OAuth or API-key based custom integrations.
  </Card>
</CardGroup>

<CardGroup cols={2}>
  <Card title="Book a Free Setup Call" icon="phone" href="https://cal.com/rameshelamathi/yuko-demo">
    Talk to our team for personalised setup help.

    **Time:** 30 minutes
  </Card>

  <Card title="Contact Support" icon="life-ring" href="https://yuko.so/support/">
    Visit our support hub for help articles, live chat and ticket submission.
  </Card>

  <Card title="Browse the Guides" icon="book" href="/getting-started/welcome">
    Documentation across loyalty, referrals, memberships and more.
  </Card>

  <Card title="Install Yuko" icon="shop" href="https://apps.shopify.com/yuko">
    Add Yuko to your Shopify store from the Shopify App Store.
  </Card>
</CardGroup>